- A shape composed of three equilateral triangles arranged in such a manner that a fourth triangle of equal shape could be fit in between them.
Shape composed of three triangles in a specific alignment
triforce (third-person singular simple present triforces, present participle triforcing, simple past and past participle triforced)
- (Internet, slang) To post three Unicode triangles (▲) arranged in this configuration, especially at 4chan.
For usage examples of this term, see the citations page.