1. (noun) a very slender natural or synthetic fiber

• fibril
• strand

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

• filum

1. (noun) a very slender natural or synthetic fiber

• fiber
• fibre

2. (noun) the stalk of a stamen

• stalk
• stem

3. (noun) a threadlike structure (as a chainlike series of cells)

• anatomical structure
• bodily structure
• body structure
• complex body part
• structure

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

• conducting wire
• wire

1. (noun) a very slender natural or synthetic fiber

• barb
• chromatid
• cobweb
• gossamer
• hypha
• myofibril
• myofibrilla
• sarcostyle
• paraphysis
• rhizoid

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

• hair
• pilus

1. (noun) a very slender natural or synthetic fiber

• filamentlike
• filamentous
• filiform
• threadlike
• thready

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

• filar