la·​cin·​ia | \ ləˈsinēə \
plural laciniae\ -​ēˌē \ or lacinias

Definition of lacinia

1 : a narrow incised segment in a leaf or similar structure
2a : the inner process of the stipes of an insect's maxilla and especially of its first maxilla
b : a slender fleshy process on the head of a fish

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History and Etymology for lacinia

New Latin, from Latin, lappet, flap; akin to Latin lacer mangled

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“Lacinia.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2021.

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