Main Entry:

gas·eous

Pronunciation:

\ˈga-sē-əs, ˈga-shəs\

Function:

adjective

Date:

1799

1: having the form of or being gas ; also : of or relating to gases2 a: lacking substance or solidity b: gassy 3 <trick phrases and gaseous circumlocutions — Edwin Newman>

— gas·eous·ness noun