costa
noun
a rib or riblike part.
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costa
1 American
[kos-tuh, kaw-stuh]
/ ˈkɒs tə, ˈkɔ stə /
noun
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costae
plural
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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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Costa
2
American
[kaw-stuh]
/ ˈkɔ stə /
noun
costa
British
/ ˈkɒstə /
noun
-
the technical name for rib 1
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a riblike part, such as the midrib of a plant leaf
costa
Scientific
/ kŏs′tə /
-
costae
plural
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.
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In St. Augustine, Fla., saying "It costa me ten bucks but I like mucha better," Shrimper Tomas DiGrande got permission to change the name of his boat from Il Duce to Diana.
From Time Magazine Archive
Billfish Bite Goes Loco Anglers release more than 2,000 sails and marlin in costa rica.
From Time Magazine Archive
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 William S. Furneaux
A trip "across the way," as people remembered his father used to say, over to the costa d'afora, to Algiers!
From Mayflower (Flor de mayo) A Tale of the Valencian Seashore by Arthur Livingston
As they were fitting out for sea, they were attacked by a Spanish guarda costa that had just captured an English interloper.
From The Monarchs of the Main, Volume III (of 3) Or, Adventures of the Buccaneers by Walter Thornbury
The family, who split their time between Costa Rica and Orkney and travelled more than 5,000 miles for the birth, said Duncan was born in a much-loved place.
From BBC ● Sep. 23, 2026
Spain’s beachside paradise of Costa del Sol has become one of the most trafficked ports of entry.
From The Wall Street Journal ● Sep. 23, 2026
A large-scale housing development has been approved on the former site of a state hospital campus in Costa Mesa.
From Los Angeles Times ● Sep. 22, 2026
EU chief Antonio Costa welcomed the deal on Tuesday as a "positive step for transatlantic cooperation and Arctic security."
From Barron's
They saw no one until they reached the dock, and the first man they saw there was Tony Costa, guarding the gates.
From "The Golden Compass" by Philip Pullman
Shell not carinated, but with radiating costae, which are often bifurcated, aperture often with lateral projections which contract it, aptychus formed of two pieces.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
Shells globular, but having radiating and tuberculated costae.
From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various
Its costae are very short, and retrusible; its two tentacles are pinnate and are also retrusible.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various
Intercostal: between veins or costae; usually in the narrow grooves between veins in the costal region of a wing.
From Explanation of Terms Used in Entomology by John. B. Smith
True costae always correspond to the septa, and are in fact the peripheral edges of the latter.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various
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.
