noun
: the nucleus of a male gamete ; especially : either of the two nuclei that arise from the generative nucleus of a pollen grain and function in the double fertilization characteristic of seed plants
noun
: the nucleus of a male gamete ; especially : either of the two nuclei that arise from the generative nucleus of a pollen grain and function in the double fertilization characteristic of seed plants
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012