filament

filament
—filamented, adj.
/fil"euh meuhnt/, n.
1. a very fine thread or threadlike structure; a fiber or fibril: filaments of gold.
2. a single fibril of natural or synthetic textile fiber, of indefinite length, sometimes several miles long.
3. a long slender cell or series of attached cells, as in some algae and fungi.
4. Bot. the stalklike portion of a stamen, supporting the anther. See diag. under flower.
5. Ornith. the barb of a down feather.
6. (in a light bulb or other incandescent lamp) the threadlike conductor, often of tungsten, in the bulb that is heated to incandescence by the passage of current.
7. Electronics. the heating element (sometimes also acting as a cathode) of a vacuum tube, resembling the filament in an incandescent bulb.
8. Astron. a solar prominence, as viewed within the sun's limb.
[1585-95; < NL filamentum, equiv. to LL fila(re) to wind thread, spin (see FILE1) + L -mentum -MENT]

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Universalium. 2010.

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  • filament — [ filamɑ̃ ] n. m. • 1539; bas lat. filamentum, de filum « fil » 1 ♦ Production organique longue et fine comme un fil. Filaments de bave, de moisissures. « je vis cette matière épaisse se résoudre lentement et par degrés en filaments » (Buffon).… …   Encyclopédie Universelle

  • Filament — may refer to:In physics and electrical engineering* Electrical filament * Current filament * Filament propagation, diffractionless propagation of a light beam * Hot cathode, a filament in a vacuum tube that emits electronsIn astronomy* Galaxy… …   Wikipedia

  • filament — FILAMÉNT, filamente, s.n. 1. Formaţie filiformă a unor celule animale sau vegetale. ♦ Parte a staminei care susţine antera 2. Conductor subţire, de obicei de metal, care devine incandescent, când este străbătut de curent electric. 3. Formaţie… …   Dicționar Român

  • Filament — Fil a*ment, n. [F. filament, fr. L. filum thread. See {File} a row.] A thread or threadlike object or appendage; a fiber; esp. (Bot.), the threadlike part of the stamen supporting the anther. [1913 Webster] …   The Collaborative International Dictionary of English

  • Filamént — (lat.), Fadenwerk, Gefaser; in der Botanik soviel wie Staubfaden …   Meyers Großes Konversations-Lexikon

  • Filamént — (lat.), Fadenwerk, Gefaser; feinste Nerven und Sehnenfäden; in der Botanik s.v.w. Staubfaden …   Kleines Konversations-Lexikon

  • Filament — Filament, Staubfaden, Teil eines ⇒ Staubblatts, der die Anthere trägt …   Deutsch wörterbuch der biologie

  • filament — 1590s, from Mod.L. filamentum, from L.L. filare to spin, draw out in a long line, from L. filum thread (see FILE (Cf. file) (v.)) …   Etymology dictionary

  • filament — Filament. s. m. Petit fil, petit brin long & delié semblable à celuy qui se tire de l escorce du chanvre ou du lin. Les filaments des plantes. les filaments des herbes. Il se dit aussi en parlant des nerfs & des muscles, &c. Les nerfs sont pleins …   Dictionnaire de l'Académie française

  • filament — ► NOUN 1) a slender thread like object or fibre. 2) a metal wire in an electric light bulb, which glows white hot when an electric current is passed through it. 3) Botany the slender part of a stamen that supports the anther. DERIVATIVES… …   English terms dictionary

  • filament — [fil′ə mənt] n. [Fr < ML filamentum < LL filare, to spin < L filum: see FILE1] 1. a very slender thread or fiber 2. a threadlike part; specif., a) the fine metal wire in a light bulb which becomes incandescent when heated by an electric… …   English World dictionary

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