plural of potassium-argon dating

Alternative form of out of date

(idiomatic) Too old to be used; not current; invalid; outmoded. / (idiomatic) Not conforming to the current fashion or style; old-fashioned.

Synonym of Julian day.

The date and year something or someone was born.

plural of date of birth

plural of date of birth

(idiomatic) An inevitable future event or anticipated occurrence, especially in the form of an encounter which is likely to be momentous.

simple past tense and past participle of double date

The date on which a pregnant woman is expected to give birth. / The date of payment in financial arrangements. / The date by which a book (or other item) borrowed from a library must be returned.