costula

noun
cos·​tu·​la | \ ˈkäschələ, -styə-\
variants: or costule \ -​schəl , -​styəl \
plural costulae\ -​ˌlē , -​ˌlī \ or costules

Definition of costula

zoology
: a small ridge (as one of those that make up the sculpture of a mollusk shell)

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Other Words from costula

costulation \ ˌ⸗⸗ˈlāshən \ noun, plural -s

History and Etymology for costula

New Latin costula, from Latin costa rib + New Latin -ula

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