Apparent Danger
Defined in 2 dictionaries — Cyclopedic (1922), Black's (1891)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
That degree of peril of death or great bodily harm which will justify the killing of an assailant in self-defense. The danger need not be real, but must be sufficient to cause a reasonably prudent and courageous man to believe himself in imminent peril.
A Dictionary of Law
Henry Campbell Black · 1891
as used with reference to the doctrine of self-defense in homicide, means such overt actual demonstration, by conduct and acts, of a design to take life or do some great personal injury, as would make the killing apparently necessary to self-presurvation. 44 Miss. 762.