The Collaborative International Dictionary of English v.0.48:
Baptismal \Bap*tis"mal\, a. [Cf. F. baptismal.] Pertaining to baptism; as, baptismal vows. [1913 Webster] Baptismal name, the Christian name, which is given at baptism. [1913 Webster]WordNet (r) 3.0 (2006):
baptismal name n 1: the first name given to Christians at birth or christening [syn: Christian name, baptismal name]