What does anomalistic or anomalistical mean?
The definition of anomalistic and anomalistical
A*nom`a*lis”tic, A*nom`a*lis”tic*al, a.
Etym: [Cf. F. anomalistique.]

1 Irregular; departing from common or established rules.
2 (Astron.)
Pertaining to the anomaly, or angular distance of a planet from its perihelion. Anomalistic month. See under Month.

— 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. See under Year.