- (linguistics) In linguistics, particularly Indo-European Studies, signifying a stem which alternates between more than one form when declined for grammatical case. Examples of heteroclitic noun stems in Proto-Indo-European include *wod-r/n- "water" (nominoaccusative *wódr; genitive *udnés; locative *udén) and *yékw-r/n- "liver" (nominoaccusative *yékwr, genitive *ikwnés). In Proto-Indo-European, heteroclitic stems tend to be noun stems with grammatically inanimate gender.
- (microbiology) Pertaining to antibodies that react to a wide variety of antigens.
- 2011, Eric J. Toone, Advances in Enzymology and Related Areas of Molecular Biology, page 300:
- […] a heteroclitic response was never observed after the immunization with the deamidated peptide […]
heteroclitic (plural heteroclitics)
- A heteroclitic noun.