1(of a substance) able to flow easily:the paint is more fluid than tube watercolours
smoothly elegant or graceful:her movements were fluid and beautiful to watch
not settled or stable; likely or able to change:our plans are still fluidthe fluid political situation of the 1930s
2(of a clutch or coupling) using a liquid to transmit power.
არსებითი სახელი
Universal
a substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid:body fluids [mass noun]:a bottle of cleaning fluid