(n.) The act of inhaling; also, that which is inhaled.

Aqua-Lung air current artificial respiration aspiration asthmatic wheeze breath breath of air breathing broken wind cough crosscurrent current current of air downdraft draft exhalation expiration exsufflation fall wind flow of air following wind gasp gulp hack head wind hiccup indraft inflow inhalator inhalement inrush inspiration insufflation iron lung jetstream katabatic wind monsoon mouth-to-mouth resuscitation movement of air oxygen mask oxygen tent pant puff respiration scuba sigh sneeze sniff sniffle snore snoring snuff snuffle sternutation stertor stream stream of air suck sucking suction suspiration tail wind undercurrent updraft wheeze wind