A fine thread or wire. / Such a wire, as can be heated until it glows, in an incandescent light bulb or a thermionic valve.

Having the form of threads or filaments; filamented.

plural of filament

The growth of filaments. / (biology) An anomalous growth of certain bacteria in which they continue to elongate but do not divide.

Of or relating to a filament; having filaments; filamentous.

plural of filamentation

Forming filaments

Relating to, or composed of, filaments.

In a filamentous manner

Alternative form of filamentous