Definition of allotropic in US English:

allotropic

adjective

Chemistry
  • See allotropy

    • ‘Sulfur exists in three allotropic forms, two of which are yellow crystalline solids, and the third of which is an amorphous thick, brown, plastic liquid.’
    • ‘Synthetic diamonds are produced by forcing an allotropic transition from graphite to diamond under conditions of extremely high temperature and mechanical pressure over a period of several days or weeks.’
    • ‘Graphite is one of the four allotropic forms of carbon; the other three are amorphous carbon, diamond, and fullerene.’
    • ‘As its two allotropic forms might suggest, silicon is a metalloid.’
    • ‘Manganese exists in four allotropic forms, the most common of which is stable to a temperature of about 1,300°F.’

Pronunciation

allotropic

/ˌæləˈtrɑpɪk//ˌaləˈträpik/