1. 细丝;细线;丝状物
A filament is a very thin piece or thread of something, for example the piece of wire inside a light bulb.

1. a thin wire (usually tungsten) that is heated white hot by the passage of an electric current

2. a threadlike structure (as a chainlike series of cells)

Synonym: filum

3. the stalk of a stamen

4. a very slender natural or synthetic fiber

Synonym: fibrilstrand