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lacinia

noun
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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