半はん数すう体たいMeanings1nounhaploidgeneticsTechnical term in genetics for a cell or organism having a single set of unpaired chromosomes.半はん数すう体たいの細さい胞ぼうは、染せん色しょく体たいを一ひと組くみだけ持もつ。A haploid cell has only one set of chromosomes.酵こう母ぼの半はん数すう体たい株かぶを用もちいて実じっ験けんを行おこなった。We conducted an experiment using a haploid strain of yeast.