costa
noun
a rib or riblike part.
costae
-
pluralof costa.plural
The grammatical form denoting more than one person, place, thing, or idea.
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.
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
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
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
