Definition of "exhale"

exhale

/ɛksˈheɪl/

verb
third-person singular simple present exhales, present participle exhaling, simple past and past participle exhaled
1. (intransitive) To expel air from the lungs through the nose or mouth by action of the diaphragm, to breathe out.
2. (transitive) To expel (something, such as tobacco smoke) from the lungs by action of the diaphragm.
3. (intransitive) To pass off in the form of vapour; to emerge.
  Quotations
  Above was a tiled roof – though from that imperfect tiling exhaled stench and pestilence.
  2008, Gregor Dallas, Metrostop Paris, John Murray, published 2009, page 9
4. (transitive) To emit (a vapour, an odour, etc.).
  Quotations
  Leſs fragrant Scents th' unfolding Roſe exhales, / Or Spices breathing in Arabian Gales.
  1715, [Alexander] Pope, The Temple of Fame: A Vision, London: […] Bernard Lintott […], page 29
5. (transitive) To draw out; to cause to be emitted in vapour.
noun
plural exhales
1. An exhalation.
  Quotations
  Now have client take slower, normal breaths through the nose and notice how the abdomen moves slightly outward with each inhale and then deflates with each exhale.
  2009, David A. Clark, Aaron T. Beck, Cognitive Therapy of Anxiety Disorders: Science and Practice