(medicine) A clear bodily fluid in the form of a very pure saline solution with microglia that occupies the subarachnoid space in the brain (between the skull and the cerebral cortex), and which acts as a cushion or buffer for the cortex.

(chemistry) A thermoplastic fluoropolymer having various uses as a film or resin. Abbreviation: PVF

A thermoplastic fluoropolymer of high purity and resistance to solvents, acids and alkalis, having many uses, including as an insulator and an ingredient of some paints and batteries. Abbreviation: PVDF

The branch of engineering and technology that is concerned with the construction of devices that use the flow and pressure of a fluid in circuits analogous to electronic ones

Alternative spelling of flukey

(uncountable) The state of being fluid rather than viscous / (countable) A measure of the extent to which something is fluid. The reciprocal of its viscosity. / The quality of being fluid or free-flowing

present participle of flute

Making a sound like a flute.

(architecture, sculpture) A decoration consisting of parallel, normally vertical, flutes (grooves) incised into the surface. / The act of making such grooves. / A flute-like sound.

The quality of smoothness of flow. / (linguistics) The quality of being fluent in a language; A person's command of a particular language.