(medicine) blowing air or medicated powder into the lungs (or into some other body cavity)
<noun.process>
an act of blowing or breathing on or into something
<noun.act>
Insufflation \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.