asphaltum
/æs'fæltәm/
📖 中文释义
- n. (=asphalt)沥青, 柏油
🔗 释义中的汉语词
📘 English Definition（英文释义）
- n. Mineral pitch, Jews' pitch, or compact native bitumen.
- It is brittle, of a black or brown color and high luster on a surface
- of fracture; it melts and burns when heated, leaving no residue. It
- occurs on the surface and shores of the Dead Sea, which is therefore
- called Asphaltites, or the Asphaltic Lake. It is found also in many
- parts of Asia, Europe, and America. See Bitumen.
- n. A composition of bitumen, pitch, lime, and gravel, used
- for forming pavements, and as a water-proof cement for bridges, roofs,
- etc.; asphaltic cement. Artificial asphalt is prepared from coal tar,
- lime, sand, etc.