fluid

Meanings

Noun

• Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma.
• A liquid .
• Intravenous fluids.

Adjective

• Of or relating to fluid.
• In a state of flux; subject to change.
• Moving smoothly, or giving the impression of a liquid in motion.
• Convertible into cash.
• Genderfluid.

Origin

• From Middle English fluid, from Latin fluidus, from Latin fluō, from Proto-Indo-European *bʰleh₁-. Akin to Ancient Greek φλύειν. Not related to English flow, which is a native, inherited word from *plew-.