diploid

1. not comparablebiologyOf a cell, having a pair of each type of chromosome, one of the pair being derived from the ovum and the other from the spermatozoon. Most somatic cells of higher organisms are diploid.

   It has been shown, however, that triploid forms producing diploid gametes in one sex and haploid ones in the other sex can act as a stepping stone towards tetraploidization (triploid bridge; [ 93 – 95 ]).

   2015 July 4, Heinz-Ulrich Reyer, Christian Arioli-Jakob, Martina Arioli, “Post-zygotic selection against parental genotypes during larval development maintains all-hybrid populations of the frog Pelophylax esculentus”, in BMC Evolutionary Biology, volume 15, →DOI

2. not comparablebiologyOf an organism, having diploid cells.
3. not comparablechemistryOf a certain symmetry class with 24 congruent irregular quadrilateral faces.

plural diploids

1. A diploid cell.
2. A diploid organism.

   The variation of caryopsis characters in species of Aegilops and wheat diploids is similar to that of wheat tetraploids .

   1995, Romuald Kosina, Tetraploids of the Genus Triticum in the Light of Caryopsis Structure