Definition of haploids:
(adj) :
(genetics, loosely) Having 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).
(adj) :
(genetics, strictly) Having a single set of unpaired chromosomes (which is the number that a typical gamete has in many organisms although not all).
(n) :
A cell which is haploid.
(n) :
An organism, such as a fungus, with haploid cells.