haploid

1. broadlynot comparablebiologyHaving the number of chromosomes that a typical gamete has (in the given organism), namely, half the number that a typical somatic cell has (in the given organism).
   1. broadlynot comparablestrictlybiologyHaving a single set of unpaired chromosomes (which is the number that a typical gamete has in many organisms although not all).

      Examples of haploid cells are prokaryotes and the gametes of eukaryotes.

      1 more example

      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

      Synonyms: monoploid

plural haploids

1. A cell which is haploid.

   In teleosts, double haploids (DHs) induced by mitogynogenesis are often sterile.

   2015 November 19, “Gonadal Transcriptome Analysis in Sterile Double Haploid Japanese Flounder”, in PLOS ONE, →DOI

2. An organism, such as a fungus, with haploid cells.