After gorgonzola and biscuits the waiter brought us two cups of a doubtful fluid called coffee.

Those fountains produced a fluid called blood honey.

Modern dragonflies, like other insects, pump a fluid called hemolymph throughout their bodies.

Male oysters produce a milky white reproductive fluid called "spawn".

It is without question that fierce and most destructive fluid called lightning.

Most blisters are filled with a clear fluid called serum or plasma.

The front part of the eye is filled with a clear fluid called aqueous humor.

Instead of having blood vessels, the daphnia have a fluid called haemolymph.