‖n. [ NL., prob. fr. L. clitellae a packsadle. ] (Zool.) A thickened glandular portion of the body of the adult earthworm, consisting of several united segments modified for reproductive purposes. [ 1913 Webster ]

a. [ L. heteroclitus, Gr. &unr_;; &unr_; other + &unr_; to lean, incline, inflect: cf. F. hétéroclite. ] Deviating from ordinary forms or rules; irregular; anomalous; abnormal. [ 1913 Webster ]

n. 1. (Gram.) A word which is irregular or anomalous either in declension or conjugation, or which deviates from ordinary forms of inflection in words of a like kind; especially, a noun which is irregular in declension. [ 1913 Webster ]

2. Any thing or person deviating from the common rule, or from common forms. Howell.