As used in this chapter, unless the context otherwise requires:
(1) “Court” shall mean circuit court;
(2) “Guardian” shall mean one appointed to have the care and custody of the person of an incompetent; and
(3) “Incompetent person” shall mean a person as to whom it is proved: He or she is incapable of caring for himself or herself by reason of intellectual and developmental disability, mental illness, imbecility, idiocy, or other mental incapacity;
(4) He or she manifests sexual inclinations which make it probable that he or she will procreate children unless he or she is rendered incapable of procreation; and
(5) There is no probability that his or her condition will improve so that he or she will become capable of caring for himself or herself.