Tra từ quartz - Từ điển Oxford Advanced Learner 8th

Từ điển Oxford Advanced Learner 8th

quartz quartz [quartz quartzes] BrE [kwɔːts] NAmE [kwɔːrts] noun uncountable a hard mineral, often in ↑crystal form, that is used to make very accurate clocks and watches Word Origin: mid 18th cent.: from German Quarz, from Polish dialect kwardy, corresponding to Czech tvrdý ‘hard’. Example Bank: •The watch runs with a normal quartz movement.
▼ Từ liên quan / Related words Từ đồng nghĩa / Synonyms: quartz glass vitreous silica lechatelierite crystal