noun🔗ShareТетраAny of numerous species of small South American freshwater fish of the family Characidae, popular in home aquariums."The aquarium in the doctor's waiting room was filled with brightly colored tetra and lush green plants. "Аквариум в приемной врача был заполнен ярко окрашенными тетрами и пышными зелеными растениями.fishanimalChat with AIVocabulary GamePractice Reading