/top"not'/ , n.
1. a tuft of hair growing on the top of the head.
2. hair fashioned into a knob or ball on top of the head.
3. a tuft or crest of feathers on the head of a bird.
4. a knot or bow of ribbon worn on the top of the head.
[ 1680-90; TOP 1 + KNOT 1 ]