ˌpidyənhəˈben noun
( plural pidyon habens or pidyon habonin )
Etymology: Late Hebrew pidyōn habēn, literally, redemption of the son
: a traditional Jewish ceremonial rite observed on the 30th day after the birth of a first-born male child of one not a Cohen or a Levite in which the father symbolically relieves the child of ritual responsibilities by redeeming him from a Cohen for a certain sum