noun

tetra

TEH-truh

noun

Any of several small, brightly coloured freshwater fish popular in home aquariums.

"She added a school of neon tetras to her fish tank."

How to Use Tetra

Learner’s notes

In plain EnglishA small aquarium fish, often kept in colourful schools.

Common pairings

neon tetra school of tetras

tetras plural

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She added a school of neon _____ to her fish tank.

Shortened from the scientific genus name Tetragonopterus, built from Greek tetragonos, "four-sided", and pteron, "fin".

petra