from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A canopy placed over the head and shoulders or over the entire body of a patient to provide oxygen at a higher level than normal.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun medicine A
canopyfor the headand shoulders, or a similar enclosurefor the whole body, within which airhaving a higher than normal supply of oxygen can be administered to a patient.
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