- fibril, filament, strand - a very slender natural or synthetic fiber
--1 is a kind of fiber, fibre
--1 has particulars:barb; cobweb, gossamer; chromatid; myofibril, myofibrilla, sarcostyle; rhizoid; hypha; paraphysis - filament - the stalk of a stamen
--2 is a kind of stalk, stem
- filament, filum - a threadlike anatomical structure or chainlike series of cells
--3 is a kind of structure, anatomical structure, complex body part, bodily structure, body structure
--3 has particulars: hair, pilus- filament - a thin wire (usually tungsten) that is heated white hot by the passage of an electric current
--4 is a kind of wire, conducting wire
--4 is a part oflight bulb, lightbulb, bulb, incandescent lamp, electric light, electric-light bulb - filament, filum - a threadlike anatomical structure or chainlike series of cells