Law Dictionary

The term "operational technology" means hardware and software that detects or causes a change through the direct monitoring or control of physical devices, processes, and

The term “operational test and evaluation” means— (i) the field test, under realistic combat conditions, of any item of (or key component of) weapons, equipment, or munitions for t

“operate aircraft” and “operation of aircraft” mean using aircraft for the purposes of air navigation, including— (A) the navigation of aircraft; and (B) causing or authorizing the

A term applied to indicate the manner in which a party acquires rights without any act of his own, as, the right to an estate of one who dies intestate is cast upon the heir at law

The term “operations, maintenance, and replacement costs” means all costs for the operation of a rural water supply project that are necessary for the safe, efficient, and continue

The term “operations research” means the application of social science research methods, statistical analysis, and other appropriate scientific methods to judge, compare, and impro

A workman; one employed to perform labor for another. See 2 Cush. (Mass.) 371.

The actual existence of a statute, prior to such a determination, is an operative fact and may have consequences which cannot justly be ignored.

In a written instrument, that which carries out the main object of the instrument, as distinguished from the recitals, formal conclusion, etc. Sometimes everything that follows the

Those by which the purpose of an instrument is effected. Generally applied to those words in a deed by which an estate is passed, viz., "grant," "quitclaim," "demise," "bargain and

The term 'operator' in section 310 (b) is an apt designation of one who conducts a market agency at a stockyard.

The term “operator services” means any interstate telecommunications service initiated from an aggregator location that includes, as a component, any automatic or live assistance t

Lat. Contrary to the prohibition of a new work; contrary to the law prohibiting the erection of a new building. A phrase supposed to be derived from the title J)e novi operis nunti

In the civil law. A protest or warning against (of) a new work. Dig. 39. 1.

Tbe ancient time of marriage, from Epiphany to Ash-Wednesday.

A duly licensed physician who specializes in the care of the eyes.

The term “opiate” or “opioid” means any drug or other substance having an addiction-forming or addiction-sustaining liability similar to morphine or being capable of conversion int

I. Opinion. Opinio quse favet testamento est tencnda: the opinion which favors a will is to be followed. Opinio comuiunis or vulgaris: common opinion; general or prevalent opinion,

SCILICET, opinio vulgaris, orta inter graves et discretes, et quae vultum veritatis habet, et opinio tantum orta inter leves et vulgares homines, absque specie veritatis. Opinion i

Opinion is twofold, that is, common opinion arising among serious and discreet persons and which has the aspect of truth, and opinion arising among light-minded and ordinary men wi

4 Coke, 107. Opinion is of two kinds, namely, common opinion, which springs up among grave and discreet men, and which has the appearance of truth, and opinion which springs up onl

In Evidence. An inference or conclusion stated by a witness, as distinguished from a statement of matters of fact. In Practice. The statement o£ reasons delivered by a judge or cou

Evidence of what the witness thinks, believes, or infers in regard to facts in dispute, as distinguished from his personal knowledge of the facts themselves ; not admissible except

An opinion not given to the jury, pronounced after a verdict was rendered, and, consequently, having no influence on that verdict, which states merely the course of reasoning which

The federal judiciary can he called upon only to decide controversies brought before them in legal form. The constitution of Massachusetts authorizes each branch of the legislature

An opinion which favors a will is to be upheld.

The opinion which favors a will is to be followed. 1 W. Bl. 13, arg.

The term “opiate” or “opioid” means any drug or other substance having an addiction-forming or addiction-sustaining liability similar to morphine or being capable of conversion int

The term "opioid trafficking" means any illicit activity— (A) to produce, manufacture, distribute, sell, or knowingly finance or transport— (i) synthetic opioids, includi

The term “opioid treatment program” means an entity that is an opioid treatment program (as defined in section 8.2 of title 42 of the Code of Federal Regulations, or any successor

For purposes of this section, the term “opioid use disorder care team” means a team of health care practitioners established by a participant described in paragraph (1)(A) that— (i

The term "opioid use disorder treatment services" means items and services that are furnished by an opioid treatment program for the treatment of opioid use disorder, inc

The term “opium poppy” means the plant of the species Papaver somniferum L., except the seed thereof.

It is necessary, fitting, or proper.

It is necessary that a thing certain be brought into the gift.

terrae, et certi status, comprehendantur in declaratione usuum. It Is necessary that certain persons, lands, and estates be comprehended in a declaration of uses. 9 Coke, 9.

It is necessary that certain persons, lands and estates should be included in a declaration of uses.

It is necessary that a thing certain be brought to judgment.

It is necessary that anything sold should be certain.

9 Coke, 9. It is necessary that given persons, lands, and estates shonid be comprehended in a declaration of uses.

It is necessary that a certain thing be brought into the gift or made the subject of the conveyance. Bract, fol. 15b.

It is necessary that there should be a certain thing which is sold. To make a valid sale, there must be certainty as to the thing which is sold. Bract, fol. 61b.

A contraction of obtulit or optulit, in the old books. A. opp' see versus B. quarto die, A. offered himself against B. on the fourth day. Fleta, lib. 2, c. 65, § 11; Id. c. 67, § 2

A fortified town.

To pledge.

In this paragraph, the term “opportunity pool loan” means a private education loan made by a lender to a student attending the institution or the family member of such a student th

A fundamental requirement of due process is 'the opportunity to be heard.' It is an opportunity which must be granted at a meaningful time and in a meaningful manner.

An officer formerly belonging to the green-wax in the exchequer.

By "opchoose an assignee in bankruptcy, ''the judge, or, if there be no opposing interest, the register, sliall appoint," — is meant not merely an interest contending, by vote, for

Opposite things when placed next to one another shine out more clearly.

Over against, standing in front or facing. Bradley v. Wilson, 58 Me. 860. See Sunbury S. F. & T. B. Co. v. Grant (Pa.) 15 Atl. 706; 23 L. J. Ch. 45.

upon that notice, the debtors had a right to come into court and file their petition, which is technically called an opposition, and set up, as matter of defence, everything that c

The term “opposition period” means the time allowed for filing an opposition in the United States Patent and Trademark Office, including any extension of time granted under section

The act of an officer in inflicting upon any person, with improper motive, any bodily harm, imprisonment, or other injury, not constituting extortion. Steph. Dig. art. 119; 4 Q. B.

“Oppressive child labor” means a condition of employment under which (1) any employee under the age of sixteen years is employed by an employer (other than a parent or a person sta

One who having public authority uses it unlawfully to tyrannize over another: as, if he keep him in prison until he shall do something which he not lawfully bound to do. To charge

In Civil Law. Ignominy; shame; infamy.

An artisan qualified to grind lenses, fill prescriptions, and fit frames.

QUAE MINIiVIUM reiinquit arbitriO' judicis. That is the best system of law which confides as little as possible to the discretion of the judge. Bac. Aph. 46. OPTIMA STATUTI INTERPR

Nobility; men of the highest rank.

For custom is the best interpreter of law.

Custom is the best interpreter of the law. Dig. 1, 3, 37; Broom, Max. 931; Lofft, 237.

That law is best which leaves least to the decision of the judge.

That law is best which leaves least to the decision of the judge; that judge best who leaves least to himself.

That law is the best which leaves least to the discretion of the judge; that judge is the best who leaves least to his own. Baa Aphorisms, 46; 2 Dwar. St 782. That system of law is

The term “optimal fleet size” means, with respect to a particular component, the appropriate number of vehicles to support mission requirements of such component.

QUAE MINImum reiinquit arbitrio judicis; id quod certitude ejus praestat That law is the best which leaves the least discretion to the judge; and this is an advantage which results

The law is best which leaves least to the decision of the judge; this is because the certainty of it is manifest.

That law is the best which leaves the least discretion to the judge; and this is an advantage which results from its certainty. Bac. Aphorisms, 8.

The best interpreter of a statute is the statute itself.

The best interpreter of a statute is (all its parts being considered) the statute itself. Wing. Max. p. 239, max. 68; 8 Coke, 117b.

The best interpreter of a statute, looking into all of its particulars, is the statute itself.

Optimum sustainable population.—The term "optimum sustainable population" means, with respect to any population stock, the number of animals that will result in the maxim

Best. The initial word of several Latin maxims. Optimus interpres rerum usus. The best interpreter of things is usage. The principle that custom or usage is an important guide to c

I. Custom is the best interpreter of laws. Optimus interpres rerum usus: use or usage is the best interpreter of things.

Usage is the best interpreter of things. 2 Inst. 282. OPTIMUS INTERPRETANDI MODUS est sic iegis interpretare ut leges leglbus accordant The best mode of interpreting laws is to mak

8 Coke, 169. The best mode of interpretation is so to interpret laws that they may accord with each other.

The best manner of interpreting is so to interpret the laws that laws may accord with laws.

QUI MINIMUM SIBI. He is the best judge who relies as little as possible on his own discretion. Bac. Aph. 46. OPTIMUS LEGUM INTERPRES CONsuetudo. Custom is the best interpreter of l

The best judge is he who takes least unto himself.

Custom is the best interpreter of the laws.

The term “option” means an agreement, contract, or transaction that is of the character of, or is commonly known to the trade as, an “option”, “privilege”, “indemnity”, “bid”, “off

For purposes of this paragraph, the term “optional targeted low-income child” means a targeted low-income child as defined in section 1397jj(b)(1) of this title (determined without

An original writ in the alternative, commanding either to do a thing, or show cause why it has not been done. 3 Bl. Comm. 274; Finch, Law, 257.

The term “options dealer” means any person registered with an appropriate national securities exchange as a market maker or specialist in listed options. / The term “options dealer

The covenant in the lease giving the right or option to purchase the premises was in the nature of a continuing offer to sell. It was a proposition extending through the period of

Examines eyes for refractive error, recognizes (but does not treat) diseases of the eye, and fills prescriptions for eyeglasses.

The employment of subjective and objective mechanical means to determine the accommodative and refractive states of the eye and the scope of its functions in general; the employmen

The term “opt-out physician or practitioner” means a physician or practitioner who has in effect an affidavit under paragraph (3)(B).

An old form of obtulit, used in Bracton, Bracton, fols. 354, 354b. OPUS (Lat. and Law Lat.) In civil and old English law. Work; labor; benefit; advantage. This word seems to have b

Work; labor; benefit.

Work let out to another.

Same as Opus manificium.

Manual labor.

In old English law. Labor done by the hands; manual labor; such as making a hedge, digging a ditch. Fleta, lib. 2, c. 48, § 3.

In civil law. A new work. A new (i. e., late or recent) construction on land, or alteration in works already there. Dig. 39. 1. 1. 11. OR. Ordinarily a disjunctive particle. 249 11

The term “person associated with a security-based swap dealer or major security-based swap participant” or “associated person of a security-based swap dealer or major security-base

A Saxon coin, valued at sixteen pence, and sometimes at twenty pence.

A Roman emperor’s decision.

Spoken, in contradistinction to written; as, oral evidence, which is evidence, delivered verbally by a witness.