An anatomical term that may refer to the hip bone or a variant anatomical structure related to the coxa (hip).
From Latin 'coxa' (hip) combined with 'endix,' possibly a Latin suffix meaning related to or pertaining to. This appears to be a medical neologism formed from classical roots.
This word is extremely rare in modern medical literature, which makes it a perfect example of how medical terminology from the 17th-18th centuries sometimes vanished when anatomists developed more precise descriptive language.
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