Vapor is a gas or moisture floating in the air.
(noun)An example of vapor is fog.
Vapor is defined as to give off gas or water moisture.
(verb)An example of vapor is for water to give off steam when it boils.
See vapor in Webster's New World College Dictionary
noun
Origin: ME vapour < Anglo-Fr < MFr vapeur < L vapor < IE base *wep-, to give off vapors
intransitive verb
transitive verb
See vapor in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English vapour
Origin: , from Anglo-Norman
Origin: , from Latin vapor
.Related Forms:
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