Definitions for the word "vapor" from multiple English dictionaries.
1. n.
Any substance in the gaseous, or aeriform, state, the condition of which is ordinarily that of a liquid or solid.
Source: The 1913 Webster Unabridged Dictionary, 1913
2. n.
In a loose and popular sense, any visible diffused substance floating in the atmosphere and impairing its transparency, as smoke, fog, etc.
Source: The 1913 Webster Unabridged Dictionary, 1913
3. n.
Wind; flatulence.
Source: The 1913 Webster Unabridged Dictionary, 1913
4. n.
Something unsubstantial, fleeting, or transitory; unreal fancy; vain imagination; idle talk; boasting.
Source: The 1913 Webster Unabridged Dictionary, 1913
5. n.
An old name for hypochondria, or melancholy; the blues.
Source: The 1913 Webster Unabridged Dictionary, 1913
6. n.
A medicinal agent designed for administration in the form of inhaled vapor.
Source: The 1913 Webster Unabridged Dictionary, 1913
7. n.
To pass off in fumes, or as a moist, floating substance, whether visible or invisible, to steam; to be exhaled; to evaporate.
Source: The 1913 Webster Unabridged Dictionary, 1913
8. n.
To emit vapor or fumes.
Source: The 1913 Webster Unabridged Dictionary, 1913
9. n.
To talk idly; to boast or vaunt; to brag.
Source: The 1913 Webster Unabridged Dictionary, 1913
10. v. t.
To send off in vapor, or as if in vapor; as, to vapor away a heated fluid.
Source: The 1913 Webster Unabridged Dictionary, 1913
11. n.
(brit. Vapour) 1 moisture or other substance diffused or suspended in air, e.g. Mist, smoke. 2 gaseous form of a substance. 3 medicinal inhalant. vaporous adj. Vapoury adj. [latin vapor steam]
Source: Oxford English Dictionary, 1884
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