Definition of topknots:
(n) :
A decorative knot of hair on the crown of the head, sometimes having ribbons or feathers.
(n) :
A decorative headdress.
(n) :
A crest or knot of feathers upon the head or top, as of a bird.
(n) :
Any fish in one of several genera:
(n) :
The New Zealand topknot, Notoclinus fenestratus
(n) :
The Norwegian topknot, Phrynorhombus norvegicus