Defn: An irregularity, or a deviation, in the motion of a planet or satellite from its uniform mean motion; the amount of such deviation.

INEQUATION
In`e*qua"tion, n. (Math.)

Defn: An inequality.

INEQUIDISTANT
In*e`qui*dis"tant, a.

Defn: Not equally distant; not equidistant.

INEQUILATERAL
In*e`qui*lat"er*al, a.

1. Having unequal sides; unsymmetrical; unequal-sided.

2. (Zoöl.)

Defn: Having the two ends unequal, as in the clam, quahaug, and most lamellibranch shells.

INEQUILOBATE
In*e`qui*lo"bate, a. Etym: [Pref. in- not + equi- + lobate.] (Biol.)