IPA: /ˈɡæsɪfɔrm/
KK: /ˈgæsɪfɔrm/
Having the shape or characteristics of a gas.
The gasiform substance expanded to fill the entire container.
Gasiform → It is formed from "gas" (from Latin *gasium*, meaning vapor or air) and "-iform" (from Latin *-iformis*, meaning in the shape of or resembling). The word "gasiform" means resembling or having the shape of gas.
Think of 'gas' as a vapor and '-iform' meaning 'in the shape of' — so gasiform describes something that resembles gas.