- tetraploid⇄adj. having four times the number of chromosomes characteristic of the germ cells of the species.
Ex. Tetraploid snaps [snapdragons] are those that have been treated with colchicine to give them extremely large flowers, husky growth habit and good - tetraploid⇄noun a tetraploid organism or cell.
Ex. Tetraploids are the result of recent genetic research and practical flower breeding (Gordon Morrison). - tetraploid⇄tetraploid, adjective, noun.
(Biology.)