triangulist means A person who plays the triangle. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From triangle + -ist.
noun
- A person who plays the triangle.“Mr. Church plays well enough for even his rebukes to sniggering children to be enjoyable: when it turns out that none of them will take over the vacant triangle in the school orchestra because the last triangulist's hair fell out, it is all faintly sinister.”