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单词 costa
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WordReference Random House Unabridged Dictionary of American English © 2024
cos•ta  (kos′tə, kô′stə),USA pronunciation n., pl. cos•tae 
    (kos′tē, kô′stē).USA pronunciation 
  1. a rib or riblike part.
  2. the midrib of a leaf in mosses.
  3. a ridge.
  4. Insects[Entomol.]
    • Also called cos′tal vein′. a vein, usually marginal, in the anterior portion of the wing of certain insects.
    • Also called cos′tal mar′gin. the anterior edge or border of the wing of certain insects.
  • Latin: rib, side. See coast
  • 1865–70

Collins Concise English Dictionary © HarperCollins Publishers::
costa /ˈkɒstə/ n ( pl -tae / -tiː/)
  1. the technical name for rib1
  2. a riblike part, such as the midrib of a plant leaf
Etymology: 19th Century: from Latin: rib, side, wall

ˈcostal adj
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