inhale

Short definition from Wiktionary

Verb

1. 1
   To draw air into the lungs, through the nose or mouth by action of the diaphragm.
2. 2
   To draw air or any form of gas (either in a pure form, or mixed with small particles in form of aerosols/smoke -sometimes stemming from a medicament) into the lungs, through the nose or mouth by action of the diaphragm.
3. 3
   To eat very quickly.

Noun

1. 1
   An inhalation.