costa

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Noun

costa (plural costas)

1. (anatomy) A rib.
2. (biology) A riblike part of a plant or animal, such as a middle rib of a leaf or a thickened vein or the margin of an insect wing.
   1. (entomology) The vein forming the leading edge of most insect wings.

Synonyms

• (vein of insect wing) C

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