Kalmar "caruncula" tana nufin ƙaramar haɓakar jiki ko girma, musamman wanda ake samu a jiki, kamar a ido, baki, ko yankin al'aura. Misali, caruncula lacrimalis karamin kuso ne mai ruwan hoda a kusurwar ciki na ido, yayin da caruncula sublingualis wani karamin karo ne da ake samu a karkashin harshe. Kalmar kuma tana iya nufin sifofi iri ɗaya da ake samu a cikin dabbobi, musamman tsuntsaye da dabbobi masu rarrafe.