- prenatal: occurring or existing before birth; "the prenatal period"; "antenatal care"
- Prenatal or antenatal development is the process in which an embryo or fetus (or foetus) gestates during pregnancy, from fertilization until birth. Often, the terms fetal development, foetal development, or embryology are used in a similar sense.
- The period between conception and birth. Same as prenatal.
- adj. - before birth.