(medicine) The fertilization of an egg by sperm outside of a woman's body; normally used as a treatment for infertility.

plural of fertility drug

A drug that improves fertility.

The average number of children that would be born to a woman over her lifetime if she followed the current average pattern of fertility among a given group of women and survived through her reproductive years; used as an indicator of strength of population growth.

(biology) Fertilization involving the fusion of the male and female gametes outside the bodies of the reproducing individuals.

(biology) Fertilization achieved via copulation, primarily in mammals.

plural of fertility rate

(horticulture) The ability of a soil to sustain plant growth.

plural of cross-fertilization

plural of external fertilization