FLUID


Meaning of FLUID in English

n.

Any liquid or gas that cannot sustain a shearing force when at rest and that undergoes a continuous change in shape (see flow) when subjected to such a stress .

Compressed fluids exert an outward pressure that is perpendicular to the walls of their containers. A perfect fluid lacks viscosity , but real fluids do not.

Britannica Concise Encyclopedia.      Краткая энциклопедия Британика.