A flock or tuft of wool or wool-like hairs; the downy plumage of unfledged birds.
A cloud species which consists of rounded tufts of cloud, often formed by dissipation from larger cloud species. Associated with cirrus, cirrocumulus, altocumulus, and stratocumulus genera.
A crest or knot of feathers upon the head or top, as of a bird.
The New Zealand topknot, Notoclinus fenestratus
A small European flounder (Phrynorhombus regius, syn. Rhombus punctatus).
The brown topknot, Notoclinus compressus
A decorative headdress.
A decorative knot of hair on the crown of the head, sometimes having ribbons or feathers.
Several species in the genus Zeugopterus
The Norwegian topknot, Phrynorhombus norvegicus