See pyramidal muscle and triquetrum bone.

GC: n S: NCBI – https://goo.gl/Hpgaee (last access: 26 October 2017); PT – https://www.psychologytoday.com/conditions/pyromania (last access: 31 October 2017). N: 1. Term composed of “pyro-” (word-forming element form meaning “fire,” from Greek pyro-) and “mania” (from Late Latin mania “insanity, madness,” from Greek mania “madness, frenzy; enthusiasm, inspired frenzy; mad

GC: n S: DB – http://www.differencebetween.net/science/health/disease-health/differences-between-an-arsonist-and-a-pyromaniac/ (last access: 14 November 2017); PSYCHIAT – http://psychiatric-disorders.com/personality-disorders/impulse-control-disorders-pyromania/ (last access: 14 November 2017). N: 1. adjective. 1855, from pyromania (1840, from pyro- “fire” + mania “madness, frenzy.”). As a noun from 1861. 2. Mental illness in which a person feels a strong wish to