fluid

IPA: fɫˈuʌd

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).
(specifically, medicine, colloquial, typically in the plural) Intravenous fluids.

Examples of "fluid" in Sentences

Does anyone know if the smell of the fluid is an issue?
If a large amount of fluid is present, abnormal cells may be detected by cytology if this fluid is aspirated with a syringe.
These are usually considered low risk procedures, but the risk depends on where the fluid is and how sick your child is at the time.
Moving over matter which has the qualities that we denote by the term fluid, the swayings which the air produces are of a peculiar sort, though they much resemble those of the fiddle string.
As the layers become continuous with each other at different points, the arachnoid, like the pericardium, forms a shut sac, and, like other serous membranes, it secretes a fluid, known as the _arachnoid fluid_.
Around each joint has grown up a strong sheath of tough, fibrous tissue to hold the bones together; and, inside this, between the heads of the bones, is a very delicate little bag, or pouch, containing a few drops of smooth, slippery fluid (_synovial fluid_) to lubricate the movements of the joint.