The date and year something or someone was born.

plural of date of birth

(idiomatic) A fact, situation, or personal characteristic, which may be desirable or undesirable, resulting from the circumstances into which a person was born, and which is therefore entirely beyond their control.

The genetic father of a child (as opposed to an adoptive father or stepfather).

(medicine) Any of several medical disorders that are present at birth.

Third-person singular simple present indicative form of give birth

The birth of an infant prior to the completion of its prenatal development.

plural of birthing ball

A large air–filled rubber ball that provides a soft sitting surface for a woman during labour.

plural of birth stool