n.

a small tuft or lock

"wisps of hair"

a small person

"a mere wisp of a girl"

a small bundle of straw or hay

a flock of snipe

Does the VELA pulsar have 'wisps'?
The Crab Nebula's Wisps in Radio and Optical
The Crab Nebula's Moving Wisps in Radio
A Model for the Moving `Wisps' in the Crab Nebula
Not just 'a few wisps': real-time measurement of tobacco smoke at entrances to office buildings.
Expression of WISPs and of Their Novel Alternative Variants in Human Hepatocellular Carcinoma Cells
Expression of WISPs and of their novel alternative variants in human hepatocellular carcinoma cells.
Monitoring body positions and movements during sleep using WISPs
Spectrum scheduling and brokering based on QoS demands of competing WISPs
Time-dependence in Relativistic Collisionless Shocks: Theory of the Variable "Wisps"in the Crab Nebula