4. (Opt.)
Defn: The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; called spherical aberration, when due to the spherical form of the lens or mirror, such form giving different foci for central and marginal rays; and chromatic aberration, when due to different refrangibilities of the colored rays of the spectrum, those of each color having a distinct focus.
5. (Physiol.)
Defn: The passage of blood or other fluid into parts not appropriate for it.
6. (Law)
Defn: The producing of an unintended effect by the glancing of an instrument, as when a shot intended for A glances and strikes B.
Syn. — Insanity; lunacy; madness; derangement; alienation; mania; dementia; hallucination; illusion; delusion. See Insanity.
ABERRATIONAL
Ab`er*ra"tion*al, a.
Defn: Characterized by aberration.
ABERUNCATE
Ab`e*run"cate, v.t. Etym: [L. aberuncare, for aberruncare. See
Averruncate.]