Definition of gametophyte
: the haploid multicellular individual or generation of a plant or alga with alternation of generations that begins with a haploid spore, produces gametes by mitotic division, and ends with fertilization producing a diploid zygote and that constitutes the visibly dominant form in mosses and algae, exists as an independent plant body in ferns and their relatives, and is reduced to a microscopic or rudimentary state in seed plants — compare sporophyte
gametophyticplay \gə-ˌmē-tə-ˈfi-tik\ adjective
Recent Examples of gametophyte from the Web
Nowellia curvifolia (leafy liverwort) gametophyte, berberine stained.
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Britannica.com: Encyclopedia article about gametophyte
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