plural of fluid

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 (as opposed to a solid or gas).

(not comparable) Of or relating to fluid. / In a state of flux; subject to change. / Moving smoothly, or giving the impression of a liquid in motion. / (of an asset) Convertible into cash.

The quality of being fluid.

A white, opaque fluid, applied to paper to mask textual errors; used especially to mask errors in typing so that corrections may be overtyped.

(humorous) A mythical automotive material used either in jokes or to gauge how inept someone is in basic auto mechanics.

The mixture of blood and cellular debris from the uterus that constitutes the menses

fuel in fluid form used in a cigarette lighter

Any of various units of volume used for liquid measure, all approximately 1.73–1.83 cubic inches or 28.4–30 milliliters.

plural of fluid ounce