About The Word Ash, Volcanic
Find the definition of the medical term Ash, Volcanic. Ash, Volcanic defined and explained for easy understanding at the Medical Dictionary from ClusterMed.info.
Ash, Volcanic
| Ash, Volcanic Definition And Meaning |
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What's The Definition Of Medical Term Ash, Volcanic?
The ash, dust, gases, and lava released by volcanic explosion. The gases are volatile matter composed principally of about 90% water vapor, and carbon dioxide, sulfur dioxide, hydrogen, carbon monoxide, and nitrogen. The ash or dust is pyroclastic ejecta and lava is molten extrusive material consisting mainly of magnesium silicate. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
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