Definition of redondite in US English:

redondite

noun

Mineralogy
  • A rare phosphate mineral of the variscite group which occurs as whitish amorphous masses.

Origin

Late 19th century; earliest use found in Charles Shepard (1804–1886). From Redonda, the name of an island in the West Indies (now part of the territory of Antigua and Barbuda), where the mineral was discovered + -ite.

Pronunciation

redondite

/rəˈdɒndʌɪt/