1. (adj)haploid (genetics) an organism or cell having only one complete set of chromosomes Antonyms: diploid, polyploid, triploid
2. (adj)haploid, haploidic, monoploid of a cell or organism having a single set of chromosomes Synonyms: haploid, monoploid, haploidic Antonyms: polyploid, diploid, triploid