| 单词 | bitumen |
| 释义 | Word Frequency bitumen(ˈbɪtjʊmɪn) noun 1. 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 2. the constituents of coal that can be extracted by an organic solvent 3. any liquid suitable for coating aggregates 4. the bitumen 5. a transparent brown pigment or glaze made from asphalt Derived forms bituminous (bɪˈtjuːmɪnəs) adjective Word origin C15: from Latin bitūmen, perhaps of Celtic origin |
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