Filament

Filament may refer to:

In physics and electrical engineering

• An electrical filament in an incandescent light bulb, used to emit light, or in hot cathodes of fluorescent lamps and vacuum tubes as a source of electrons, or in vacuum tubes, to heat an electron-emitting electrode
• Similarly, a thin heating element
• Current filament
• Filament propagation, diffractionless propagation of a light beam

In astronomy

• Galaxy filament, the largest known cosmic structures in the universe, thread-like structures that form the boundaries between large voids in the universe
• Solar filament, equivalent to a solar prominence
• Birkeland current, a specific magnetic field-aligned current in the Earth’s magnetosphere

In biology

• Protein filament, a long chain of protein subunits, such as those found in hair, muscle, or in flagella
• Part of a stamen, the male part of a flower
• A chain of cells connected end-to-end
• Hypha, a thread-like cell in fungi and Actinobacteria
• Filamentation, an elongation of individual bacterial cells

In print

• Filament (magazine), a female-oriented erotica magazine

Other uses

• Fiber or yarn
• Staple (wool), clusters or locks of wool fibers
• 2002 movie by Jinsei Tsuji
• Filament (band), a musical group from Japan that consists of Otomo Yoshihide and Sachiko M
• Filament Games, a Madison, Wisconsin based educational video game developer
• Filament Productions, a Production Design & Touring Video company based in Charlottesville, Virginia

See also

• Monofilament (disambiguation)