fossette
noun
fos·sette
(ˈ)fä¦set,
(ˈ)fȯ¦-
plural -s
: a small fossa : a little hollow
specifically : a depression for the resilium in bivalve shells
Word History
Etymology
French, small cavity, dimple, from Old French fossete, from fosse + -ete -ette
First Known Use
1827, in the meaning defined above