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| adenoid |
(usu. pl.) a mass of tissue between the nose and the throat that, when swollen, can hinder breathing. [1/2 definitions] |
| air sac |
an air-filled space or cavity in a living organism, esp. any of the ends of certain bronchial tubes in a bird's body that connect with the larger body cavity and assist in breathing. |
| amphibian |
any cold-blooded vertebrate, such as a frog or salamander, that has aquatic gill-breathing larvae and terrestrial lung-breathing adults. [1/4 definitions] |
| anemia |
a condition resulting from a deficiency of red blood cells or hemoglobin and characterized by weakness, pallor, and difficulty in breathing. |
| anemic |
pertaining to or suffering from anemia, a condition resulting from a deficiency of red blood cells or hemoglobin and characterized by weakness, pallor, and difficulty in breathing. [1/2 definitions] |
| apnea |
a temporary cessation of breathing. |
| Aqua-Lung |
trademark for an underwater breathing device similar to a scuba. |
| artificial respiration |
the resumption or continuation of a person's breathing, as by forcing air into and out of the person's lungs. |
| asthma |
a chronic respiratory disorder characterized by labored breathing, wheezing, and a feeling of tightness in the chest, often caused by an allergy. |
| breathe |
to impart as if through breathing. [1/10 definitions] |
| breathless |
breathing heavily following great exertion. [1/3 definitions] |
| carbon dioxide |
a colorless, odorless, incombustible gas that is produced naturally in breathing, combustion, and decomposition, and commercially for use in dry ice, fire extinguishers, and carbonated beverages. |
| chimera |
a mythical fire-breathing female monster with a lion's head, a goat's body, and a snake's tail. [1/3 definitions] |
| choke |
to stop or obstruct the breathing of, esp. by squeezing, blocking, or irritating the windpipe. [2/9 definitions] |
| CO2 |
abbreviation of "carbon dioxide," a colorless, odorless, incombustible gas that is produced naturally in breathing, combustion, and decomposition, and commercially for use in dry ice, fire extinguishers, and carbonated beverages. |
| croup1 |
an abnormal respiratory condition, most common in children, the symptoms of which include coughing and difficulty in breathing. |
| cystic fibrosis |
a congenital disease usu. developing in childhood and characterized by poor digestion, breathing difficulties, and pancreatic inflammation. |
| diphtheria |
a severe contagious bacterial infection whose symptoms are high fever and difficulty in breathing. |
| diver |
one who works under water, using special clothing and equipment for breathing. [1/3 definitions] |
| dragon |
a mythical animal that is usu. depicted as a monstrous, winged, fire-breathing reptile with claws and a long tail, often acting as a guardian of a place, treasure, or the like. [1/2 definitions] |
| dyspnea |
difficulty in breathing; shortness of breath. |
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