Webster's Revised Unabridged Dictionary · 1913

Vaporous

Vaporous (vā"pẽr*us`) , adjective

[Latin vaporosus: compare French vaporeux.]

1.
Having the form or nature of vapor. — Holland
2.
Full of vapors or exhalations. — Shakespeare
The warmer and more vaporous air of the valleys. — Derham
3.
Producing vapors; hence, windy; flatulent. — Bacon
The food which is most vaporous and perspirable is the most easily digested. — Arbuthnot
4.
Unreal; unsubstantial; vain; whimsical.
Such vaporous speculations were inevitable. — Carlyle