(ˈ)āˈgaməˌspərmē, ˈagəmōˌ- noun
( -es )
Etymology: agam- + -spermy
: apogamy 2 ; specifically : apogamy in which sexual union is not completed because of abnormal development of both embryo sac and pollen, embryos being produced from the innermost layer of the integument of the female gametophyte — compare apomixis 1