Hairs or similar protrusions along the margin of an organ.
One of the fine hairs along an insect's wing.
An eyelash.
A short microscopic hairlike organelle projecting from a eukaryotic cell (such as a unicellular organism or one cell of a multicelled organism) which serve either for propulsion by causing currents in the surrounding fluid or as sensors.
Soft down or fine hair, specifically that covering the human foetus or a tumorous area.