costa

noun

cos·​ta ˈkä-stə How to pronounce costa (audio)
plural costae ˈkä-(ˌ)stē How to pronounce costa (audio)
-ˌstī
1
2
: a part (such as the midrib of a leaf or the anterior vein of an insect wing) that resembles a rib
costal adjective

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

Dictionary Entries Near costa

Cite this Entry

“Costa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/costa. Accessed 19 Mar. 2024.

Medical Definition

costa

noun
cos·​ta ˈkäs-tə How to pronounce costa (audio)
plural costae -(ˌ)tē, -ˌtī How to pronounce costa (audio)
: rib

Biographical Definition

Costa

biographical name

Cos·​ta ˈkȯsh-tə How to pronounce Costa (audio)
Antonio (Luis Santos da) 1961–     prime minister of Portugal (2015–  )
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