| n. | 1. | (Crystallog.) A solid bounded by twenty-four similar quadrilateral faces. It is a hemihedral form of the hexoctahedron. |
| 2. | (Biol.) a cell or organism having a number of chromosomes corresponding to two copies of each chromosome; a diploid cell or organism. | |
| a. | 1. | (Biol.) having a number of chromosomes corresponding to two copies of each chromosome; having double the basic number of chromosomes, as seen in a haploid cell. Contrasted to |
| Noun | 1. | diploid - (genetics) an organism or cell having two sets of chromosomes or twice the haploid number |
| Adj. | 1. | diploid - of a cell or organism having two sets of chromosomes or twice the haploid number; "diploid somatic cells" |