1. (n.) A kind of scepter or spear with three prongs, -- the common attribute of Neptune\.

2. (n.) A three-pronged spear or goad, used for urging horses; also, the weapon used by one class of gladiators.

3. (n.) A three-pronged fish spear.

4. (n.) A curve of third order, having three infinite branches in one direction and a fourth infinite branch in the opposite direction.

5. (a.) Having three teeth or prongs; tridentate.

V branch clover crotch crutch delta deltoid deuce-ace fan fork furcula furculum groin inguen leash offshoot prong ramification set of three shamrock stem tercet ternary ternion terzetto three three-cornered three-dimensional three-footed three-pronged three-sided threesome tierce trefoil trey triad trialogue triangle triangular triangulate triarch trichotomous tricorn tricornered tricuspid tridental triennium trifid triflorate triflorous trifurcate trigonal trigonoid trigrammatic trihedral trihedron trilateral trilogy trimerous trimester trine trinity trinomial trio triparted tripartite triphthong triple crown triple threat triplet triplopy tripod tripodic triptych triquetral triquetrous trireme trisected triseme triskelion trisul triumvirate triunity trivet troika wishbone