tǐwàishòujīng
external fertilization
- external fertilization
- external fertilization; fertilization occurring outside the body, such as in vitro fertilization or the natural process in many aquatic animals
- in vitro fertilization
- a medical procedure where an egg is fertilized by sperm in a laboratory environment, outside the body (IVF)
- adosculation
- the impregnation of a female organism by external contact without intromission, as in certain birds