(music) A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound.
(cue sports) A triangular piece of equipment used for gathering the balls into the formation required by the game being played.
(systemics) The structure of systems composed with three interrelated objects.
A draughtsman's square in the form of a right-angled triangle.
(historical) A frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment.
(qualitative research) The use of three (or more) researchers to interview the same people or to evaluate the same evidence to reduce the impact of individual bias.
(politics) The practice of repositioning one's group or oneself on the political spectrum in an attempt to capture the centre.
“With astronomical observations or with existing triangulations, the gravimetric method can accomplish further results.”
“We have chosen the surfaces of a pentatope as well as a hexadecachoron, which are simple standard triangulations of a 3-sphere, shown in figure, as our underlying lattices.”