trident — English Dictionary

Noun

1. A three-pronged spear somewhat resembling a pitchfork.

   Examples

   Poseidon's trident

   More examples (1)

   I recall the height of comfort attained by the green-cushioned "first" with starched white antimacassars and a pretentious grey floor mat on which it seemed a sacrilege to stand, as it was embellished with the North Western conception of Britannia, complete with trident.

2. A curve of third order of the form

   Examples

   xy+ax³+bx²+cx=d,

Noun

1. a spear with three prongs

   Broader terms

   spearlanceshaft