Definition of pyritoid in English:

pyritoid

noun

  • Crystallography= pyritohedron. Now rare.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From pyrite + -oid, after German Pyritoid.

Pronunciation

pyritoid

/ˈpʌɪrɪtɔɪd//pʌɪˈrʌɪtɔɪd/