\In`suf*fla"tion\, n. [L. insuffatio: cf. F.
insuffation. See {In-} in, and {Sufflation}.]
The act of breathing on or into anything; especially:
(a) (R. C. Ch.) The breathing upon a person in the sacrament
    of baptism to symbolize the inspiration of a new
    spiritual life.
(b) (Med.) The act of blowing (a gas, powder, or vapor) into
    any cavity of the body.