- The definition of a filament is a slender fiber or thread.
The slim part of the stamen that supports the anther is an example of a filament.
Filaments in a lightbulb.
filament definition by Webster's New World
- a very slender thread or fiber
- a threadlike part; specif.,
- the fine metal wire in a light bulb which becomes incandescent when heated by an electric current
- the cathode of a thermionic tube, usually in the form of a wire, which may be electrically heated
- Bot. the stalk of a stamen bearing the anther
Origin: French ; from Midieval Latin filamentum ; from Late Latin filare, to spin ; from Classical Latin filum: see file
filament definition by American Heritage Dictionary
- A fine or thinly spun thread, fiber, or wire.
- Botany a. The stalk that bears the anther in a stamen.b. A chainlike series of cells, as in many algae.
- a. A fine wire heated electrically to incandescence in an electric lamp.b. Electronics A high-resistance wire or ribbon forming the cathode in some thermionic tubes.
Origin: New Latin fīlāmentum, from Late Latin fīlāre, to spin, from Latin fīlum, thread; see gwhī- in Indo-European roots.
- filˌa·menˈtous , filˌa·menˈta·ry adjective
filament - Medical Definition
- filamentous , filˌa·menˈta·ry adjective
filament - Science Definition
- A fine or slender thread, wire, or fiber.
- The part of a stamen that supports the anther of a flower; the stalk of a stamen. See more at flower.
- a. A fine wire that gives off radiation when an electric current is passed through it, usually to provide light, as in an incandescent bulb, or to provide heat, as in a vacuum tube.b. A wire that acts as the cathode in some electron tubes when it is heated with an electric current.
- Any of the dark, sinuous lines visible through certain filters on the disk of the Sun. Filaments are solar prominences that are viewed against the solar surface rather than being silhouetted along the outer edges of the disk. See more at prominence.