acic·​u·​lum | \ ə-ˈsi-kyə-ləm \
plural acicula\ ə-​ˈsi-​kyə-​lə \ or aciculums

Definition of aciculum

: a needlelike spine or bristle of an animal or plant : acicula specifically : one of the stiff setae in the base of a parapodium of an annelid

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First Known Use of aciculum

1867, in the meaning defined above

History and Etymology for aciculum

New Latin, alteration of Late Latin acicula small pin for a headdress

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The first known use of aciculum was in 1867

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Cite this Entry

“Aciculum.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2020.

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