The Collaborative International Dictionary
Hamulus
Hamulus \Ham"u*lus\ (-l[u^]s), n.; pl. Hamuli (-l[imac]). [L., a little hook.]
(Anat.) A hook, or hooklike process.
(Zo["o]l.) A hooked barbicel of a feather.
Wiktionary
hamulus
n. 1 (context anatomy English) A hook, or hooklike process. 2 (context zoology English) A hooked barbicel of a feather.
Wikipedia
Hamulus
Hamus, hamulus, and words derived from them are morphological or anatomical terms in various branches of biology. They describe structures functioning as, or in the form of, hooks or hooklets.