| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024bi•tu•men /baɪˈtumən, -ˈtyu-, bɪ-/USA pronunciation n. [uncountable]- Chemistrya black, sticky substance, such as asphalt.
WordReference Random House Unabridged Dictionary of American English © 2024bi•tu•men (bī to̅o̅′mən, -tyo̅o̅′-, bi-, bich′ŏŏ-),USA pronunciation n. - Chemistryany of various natural substances, as asphalt, maltha, or gilsonite, consisting mainly of hydrocarbons.
- Chemistry, Building(formerly) an asphalt of Asia Minor used as cement and mortar.
- Latin bitūmen
- 1425–75; late Middle English bithumen
Collins Concise English Dictionary © HarperCollins Publishers:: bitumen /ˈbɪtjʊmɪn/ n - any of various viscous or solid impure mixtures of hydrocarbons that occur naturally in asphalt, tar, mineral waxes, etc: used as a road surfacing and roofing material
- the bitumen ⇒ Austral NZ informal any road with a bitumen surface
Etymology: 15th Century: from Latin bitūmen, perhaps of Celtic originbituminous /bɪˈtjuːmɪnəs/ adj |