Recent Examples of tetra from the Web
She was born with tetra-Amelia syndrome, a rare disorder characterized by the absence of limbs.
There’s not just electric eels; there are at least a dozen tanks filled with different catfish, tetras, piranhas and the electric field-generating, ray-finned knifefish—black ghost, bluntnose and elephant nose.
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Definition of tetra-
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Britannica.com: Encyclopedia article about tetra
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