1. SYN: filamentum. 2. In bacteriology, a fine threadlike form, unsegmented or segmented without constrictions. [L. filamentum, fr. filum, a thread]
- actin f. one of the contractile elements in muscular fibers and other cells; in skeletal muscle, the actin filaments are about 5 nm wide and 100 μm long, and attach to the transverse Z filaments. SYN: thin f..
- axial f. the central f. of a flagellum or cilium; with the electron microscope it is seen as a complex of nine peripheral diplomicrotubules and a central pair of microtubules. SYN: axoneme (2).
- cytokeratin filaments SYN: keratin filaments.
- intermediate filaments a class of tough protein filaments (including keratin filaments, neurofilaments, desmin, and vimentin) that measure 8–10 nm in thickness and comprise part of the cytoskeleton of the cytoplasm of most eukaryotic cells; so named because they are intermediate in thickness between actin filaments and microtubules.
- keratin filaments a class of intermediate filaments that form a network within epithelial cells and anchor to desmosomes, thus imparting tensile strength to the tissue. SYN: cytokeratin filaments.
- myosin f. one of the contractile elements in skeletal, cardiac, and smooth muscle fibers; in skeletal muscle, the f. is about 10 nm thick and 1.5 μm long. SYN: thick f..
- parabasal f. term formerly used for rhizoplast.
- pial f. pial part of filum terminale.
- root filaments SYN: radicular fila, under filum.
- spermatic f. a spermatozoon, especially the tail of a spermatozoon.
- thick f. SYN: myosin f..
- thin f. SYN: actin f..
- Z f. the thin zig-zag structure at the Z line of striated muscle fibers to which the actin filaments attach.

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fil·a·ment 'fil-ə-mənt n a single thread or a thin flexible threadlike object, process, or appendage esp an elongated thin series of cells attached one to another or a very long thin cylindrical single cell (as of some algae, fungi, or bacteria)
fil·a·men·tous .fil-ə-'ment-əs adj

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a very fine threadlike structure, such as a chain of bacterial cells.
filamentous adj.

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fil·a·ment (filґə-mənt) [L. filamentum, from filum thread] a delicate fiber or thread.

Medical dictionary. 2011.

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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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