Definition of botryogen in English:

botryogen

noun

Mineralogy
  • A magnesium-containing mineral that is an alteration product of pyrite typically occurring as reddish crystalline masses, often botryoidal or reniform.

Origin

Early 19th century; earliest use found in Edinburgh New Philosophical Journal. From German Botryogen from ancient Greek βοτρυο-, combining form (in e.g. βοτρυόδωρος grape-producing) of βότρυς bunch of grapes + -γενής, so called in allusion to the botryoidal form of the mineral.

Pronunciation

botryogen

/ˈbɒtrɪədʒ(ə)n/