| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024bo•rax1 /ˈbɔræks, -əks/USA pronunciation n. [uncountable]- Chemistrywhite powder used as a cleansing agent.
WordReference Random House Unabridged Dictionary of American English © 2024bo•rax1 (bôr′aks, -əks, bōr′-),USA pronunciation n., pl. bo•rax•es, bo•ra•ces (bôr′ə sēz′, bōr′-).USA pronunciation - Chemistrya white, water-soluble powder or crystals, hydrated sodium borate, Na2B4O7·10H2O, occurring naturally or obtained from naturally occurring borates;
tincal: used as a flux, cleansing agent, in the manufacture of glass, porcelain, and enamel, and in tanning. Also called sodium borate, sodium pyroborate, sodium tetraborate. - Medieval Latin borax
- Middle French
- Middle Persian būrag; replacing Middle English boras
- Medieval Latin dialect, dialectal Arabic būraq
- 1350–1400
- Furniturecheap, showy, poorly made merchandise, esp. cheaply built furniture of an undistinguished or heterogeneous style.
- of uncertain origin, originally 1940–45, American.
Collins Concise English Dictionary © HarperCollins Publishers:: borax /ˈbɔːræks/ n ( pl -raxes, -races / -rəˌsiːz/)
Also called: tincal a soluble readily fusible white mineral consisting of impure hydrated disodium tetraborate in monoclinic crystalline form, occurring in alkaline soils and salt deposits. Formula: Na2B4O7.10H2O
Etymology: 14th Century: from Old French boras, from Medieval Latin borax, from Arabic būraq, from Persian būrah |