Mikveh or
mikvah (,
mikva'ot or (
Yiddish)
mikves, "a collection") is a bath used for the purpose of
ritual immersion in Judaism. In the
Hebrew Bible, the word is employed in its broader sense but generally means a collection of water. Several biblical regulations specify that full immersion in water is required to regain
ritual purity after ritually impure incidents have occurred. A person was required to be ritually pure in order to enter the Temple. In this context, "purity" and "impurity" are imperfect translations of the Hebrew
"tahara" and "tumah", respectively, in that the negative connotation of the word impurity is not intended; rather being "impure" is indicative of being in a state in which certain things are prohibited until one has become "pure" again by immersion in a mikveh.