pneo-, -pnea, -pneic, -pnoea, -pnoeic, -pneo (Greek: air, wind; breathing).apnea: 
The momentary suspension of breathing or the absence of breathing.
 
apneic: 
Related to or suffering from apnea.
 
apneusis: 
An abnormal respiratory pattern consisting of a pause at full inspiration; a prolonged inspiratory cramp caused by a lesion at the mid or caudal pontine level of the brainstem.
 
bradypnea: 
An abnormal slowness of respiration, specifically a low respiratory frequency.
 
dyspnea: 
Shortness of breath, a subjective difficulty or distress in breathing, usually associated with disease of the heart or lungs; occurs normally during intense physical exertion or at high altitude or because of being over weight; labored breathing.
 
eupnea: 
Easy, free respiration; the type observed in a normal individual under resting conditions.
 
hyperpnea: 
Breathing that is deeper and more rapid than is normal at rest.
 
hypopnea: 
Breathing that is shallower, and/or slower, than normal.
 
hypnoapnea: 
A temporary suspension of breathing during sleep; also known as sleepapnea.
 
oligopnea: 
Breathing that is shallower, and/or slower, than normal.
 
orthopnea: 
The ability to breathe easily only in an upright or sitting position or discomfort in breathing which is brought on or aggravated by lying down.
 
pimelorthopnea: 
Orthopnea; difficulty breathing in any but the erect posture, due to obesity.
 
piorthopnea: 
Orthopnea; difficulty breathing in any but the erect posture, due to obesity.
 
platypnea: 
Difficulty in breathing when erect, relieved by recumbency (in other words, by lying flat).
 
pneodynamics: 
The mechanics or action of breathing.
 
pneogaster: 
A term for the whole respiratory tract, considered as a specialized portion of the intestinal tract.
 
pneograph: 
An instrument invented by Mortimer Granville for indicating the force and character of expiration by means of a light disk suspended in front of the mouth and connected with a needle that makes an automatic tracing.
 
pneometer: 
Said to be an obsolete term for spirometer (a gasometer used for measuring respiratory gases).
 
pneometry: 
Said to be an obsolete term for  (making pulmonary measurements with a spirometer).
 
pneoscope: 
An instrument for measuring the extent of the respiratory excursions of the chest.
 
polypnea: 
Rapid breathing.
 
sleepapnea: 
The suspension of breathing while sleeping (it may be temporary or even permanent).
 
tachypnea: 
Rapid breathing.
 
thermopolypnea: 
Rapid breathing due to heat.
 
traumatopnea: 
Passage of air in and out through a wound of the chest wall.
 
trepopnea: 
Breathing difficulty occurring while lying down in a particular posture.
 
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