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# filament

noun (a filament, filaments)

«filament» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. A filament is a very thin thread or wire. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#m1)
2. In an old-style light bulb, the filament is the thin wire that glows when electricity passes through it. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#m2)
3. (science) A thin thread in living things, such as in fungi, plants or a flower's stamen. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#m3)
4. The plastic thread used in 3D printers. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#m4)

### In the lessons

Used in science lessons on electricity (filament lamps) and plants (the filament holds the anther in a flower). Phrases: «filament bulb», «filament lamp», «thin filament». It tells the reader something is threadlike.

### Examples

- The filament in the bulb glowed bright orange. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x1)
- When the filament breaks, the bulb stops working. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x2)
- The stamen of a flower has a filament and an anther. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x3)
- Spiders spin silk filaments. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x4)
- Our 3D printer uses plastic filament. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x5)
- Fungi grow tiny filaments under the ground. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/#x6)

### Note

Countable: a filament, filaments. Filament bulbs waste lots of energy as heat; LED bulbs use much less. Do not touch a bulb just switched off; the filament makes it hot.

## On Mova

- [Trees and pragmatics of «filament» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/F/filament/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«filament» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/filament.html) on Mova free.