'Celebrant' definitions:

Definition of 'celebrant'

From: WordNet
noun
A person who is celebrating [syn: celebrant, celebrator, celebrater]
noun
An officiating priest celebrating the Eucharist

Definition of 'Celebrant'

From: GCIDE
  • Celebrant \Cel"e*brant\, n. [L. celebrans, p. pr. of celebrare. See Celebrate.] One who performs a public religious rite; -- applied particularly to an officiating priest in the Roman Catholic Church, as distinguished from his assistants. [1913 Webster]