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

Word History

Etymology

Latin — more at coast

First Known Use

1565, in the meaning defined at sense 1

Time Traveler
The first known use of costa was in 1565

Browse Nearby Words

Cite this Entry

“Costa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/costa. Accessed 19 Mar. 2025.

Biographical Definition

Costa

biographical name

Antonio (Luis Santos da) 1961–     prime minister of Portugal (2015–23)
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