costa
1 Americannoun
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a rib or riblike part.
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the midrib of a leaf in mosses.
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a ridge.
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Entomology.
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Also called costal vein. a vein, usually marginal, in the anterior portion of the wing of certain insects.
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Also called costal margin. the anterior edge or border of the wing of certain insects.
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noun
noun
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the technical name for rib 1
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a riblike part, such as the midrib of a plant leaf
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of costa
1865–70; < Latin: rib, side. See coast
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
N, Ciliated furrow from sense pole to costa.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various
On the middle of the costa is a short dark streak.
From Butterflies and Moths (British) by Furneaux, William S.
Fruit from an oval cavity in the costa.
From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa
The 'bright eye' is a light spot just outside the centre of the wing, nearer the costa than the inner margin.
From Butterflies and Moths (British) by Furneaux, William S.
As our example of the next genus we take the Flame Shoulder, a rather small moth, easily identified by the broad yellowish-white streak along the costa of the reddish-brown fore wings.
From Butterflies and Moths (British) by Furneaux, William S.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.