Medical Dictionary
1gas
noun \ˈgas\
plural gas·es also gas·ses
Medical Definition of GAS
1
: a fluid (as air) that has neither independent shape nor volume but tends to expand indefinitely
2
: a gaseous product of digestion; also : discomfort from this
3
: a gas or gaseous mixture used to produce anesthesia
4
: a substance that can be used to produce a poisonous, asphyxiating, or irritant atmosphere
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