Main Entry: cos·ta

Pronunciation: \ˈkäs-tə\

Function: noun

Inflected Form(s): plural cos·tae \-(ˌ)tē, -ˌtī\

Etymology: Latin — more at coast

Date: circa 1771

1 : ¹rib 1a
2 : a part (as the midrib of a leaf or the anterior vein of an insect wing) that resembles a rib

— cos·tal \-t^əl\ adjective