neon tetra

American

noun

a small, brightly colored red and blue characin fish, Pracheirodon innesi, native to parts of the Amazon basin: a popular aquarium fish.

Etymology

Origin of neon tetra

First recorded in 1935–40

Example Sentences

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neon tetra

A thousand neon tetra, a flock of living quicksilver sewing needles, turned 90 degrees in perfect unison, then did it again, and again, and again, describing a neat, angular box in the water.

From Home Again, Home Again by Cory Doctorow

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023