trident

/หˆtษนaษชฬฏdษ™nt/
noun
  1. 1

    A three-pronged spear somewhat resembling a pitchfork.

    โ€œPoseidon's tridentโ€

  2. 2

    A curve of third order of the form:

Source: https://en.wiktionary.org/wiki/trident