A-nŏm/a-list'ic or A-nŏm/a-list'ic-al, a.
a. 1. Irregular; departing from common or established rules.
Sense 2. (Astron.) Pertaining to the anomaly or angular distance of a planet from its perihelion.
Anomalistic revolution, the period in which a planet or satellite goes through the complete cycles of its changes of anomaly, or from any point in its elliptic orbit to the same again. — Anomalistic or periodical year, the time in which the earth makes its anomalistic revolution, which is longer than the tropical year on account of the precession of the equinoxes.