Definition of diamantine in English:

diamantine

adjective

  • Made from or reminiscent of diamonds.

    • ‘Through her suit, Suzie Nova felt the diamantine exterior of the alien contraption throb faintly below her feet, alive with incomprehensible energies that course through it like blood through arteries.’
    • ‘Theodore Rousseau's burning winter sunrise over the Qise, its darkness torch-streaked with carmine and gold, sets off a chain-shot of diamantine flames in the hoarfrost on the stony riverbank.’
    • ‘Roni Mahler, guesting as the Countess, is diamantine as A Dragon Lady, all knowing, all seeing, reeking with impatience over insubordination.’
    • ‘It has been known from recent publications to use methane gas for depositing diamantine carbons whereby a desired material has been obtained under high vacuum and temperatures in the range of over 1,000 degrees C.’

Origin

Mid 16th century (in the sense ‘hard as diamond’): from French diamantin, from diamant diamond.

Pronunciation:

diamantine

/ˌdʌɪəˈmantɪn//ˌdʌɪəˈmantiːn/