plural corydoras
Definition of corydoras
: any of a genus (Corydoras of the family Callichthyidae) of chiefly tropical South American catfish that are usually 1 ½ to 3 inches (3.8 to 7.6 centimeters) in length and include some (such as C. aeneus, C. metae, and C. paleatus) kept in aquariums
Huge aquarium tanks swarm and sparkle with fish. Some, such as neon tetras and bottom-snuffling corydoras, will be familiar to tropical fish hobbyists.— Hank Burchard … if you do have an under gravel filter, your betta should get along just fine with a small catfish, such as a corydoras catfish.— Steve Dale
— called also cory catfish
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Merriam-Webster unabridged
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Time Traveler for corydoras
The first known use of corydoras was in 1932
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