Filament
# Filament

The word filament, which is descended from Latin filum meaning "thread", is used in English for a variety of thread-like structures, including:

## Astronomy

* Galaxy filament, the largest known cosmic structures in the universe
* Solar filament, a solar prominence seen against the disc of the sun

## Biology

* Myofilament, filaments of myofibrils constructed from proteins
* Protein filament, a long chain of protein subunits, such as those found in hair or muscle
* Part of a stamen, the male part of a flower
* Hypha, a thread-like cell in fungi and Actinobacteria
* Filamentation, an elongation of individual bacterial cells

## Textiles

* Fiber, natural or manmade substances significantly longer than they are wide
* Yarn (more loosely)
* Filament fiber, fiber that comes in a continuous long length

## Media

* Filament (magazine), a female-oriented erotica magazine
* 2002 movie by Jinsei Tsuji
* Filament (band), a musical group from Japan
* Filament Games, a Wisconsin-based educational video game developer
* Filament Productions, a production design and touring video company

## Physics and engineering

* Electrical filament, The thin wire in an electrical bulb that produces enough heat to give out light.
* Heater filament, a thin heating element in a vacuum tube
* Current filament, a current restricted to a small part of the conducting medium
* Filament propagation, diffractionless propagation of a light beam
* 3D printing filament, used as raw material in 3D printing
