AskDefine | Define inhalation

Dictionary Definition



1 the act of inhaling; the drawing in of air (or other gases) as in breathing [syn: inspiration, aspiration, breathing in]
2 a medication to be taken by inhaling it [syn: inhalant]

User Contributed Dictionary

see Inhalation




  1. The act of inhaling;
  2. the substance (medicament) which is inhaled.


the act of inhaling
the substance which is inhaled

See also



  1. Inhalation
  2. the act of inhaling
  3. the substance (medicament) which is inhaled

Extensive Definition

Inhalation (also known as inspiration) is the movement of air from the external environment, through the air ways, and into the alveoli.
Inhalation begins with the onset of contraction of the diaphragm, which results in expansion of the intrapleural space and an increase in negative pressure according to Boyle's Law. This negative pressure generates airflow because of the pressure difference between the atmosphere and alveolus. Air enters, inflating the lung through either the nose or the mouth into the pharynx (throat) and trachea before entering the alveoli.
Other muscles that can be involved in inhalation include:

See also


inhalation in Danish: Inhalation
inhalation in German: Inhalieren
inhalation in Esperanto: Inhalo
inhalation in Dutch: Inademing
inhalation in Norwegian: Innånding
inhalation in Polish: Inhalacja
inhalation in Simple English: Inhalation
inhalation in Swedish: Inandning
inhalation in Chinese: 吸入
inhalation in Portuguese: Inspiração

Synonyms, Antonyms and Related Words

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
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1