Meaning of Tetra
Bangla: চারি, চতুর
Unknown / অজানা / अज्ञात
any of several tropical, freshwater fishes of the family Characidae, often kept in aquariums.
a combining form meaning “four,” used in the formation of compound words: tetrabranchiate.
any of various brightly coloured tropical freshwater fishes of the genus Hemigrammus and related genera: family Characidae (characins)