bitum
| artificial
| bitum | |
| agric. | bitumens; resinous substances |
| construct. | bitumen; asphalt |
| artificial | |
| construct. | artificial |
| |||
| bitumens; resinous substances | |||
| bitumen; asphalt | |||
| bitumen A generic term applied to natural inflammable substances of variable colour, hardness, and volatility, composed principally of a mixture of hydrocarbons substantially free from oxygenated bodies. Bitumens are sometimes associated with mineral matter, the nonmineral constituents being fusible and largely soluble in carbon disulfide, yielding water-insoluble sulfonation products. Petroleum, asphalts, natural mineral waxes, and asphaltites are all considered bitumens | |||
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bitum : 47 phrases in 2 subjects |
| Chemistry | 5 |
| Construction | 42 |