Canadian Medical Guide > Biological Sciences > Environment and Public Health > Environment > Disasters > Natural Disasters Terms and Definitions
Natural Disasters
Medical Definition: | Sudden calamitous events producing great material damage, loss, and distress. They are the result of natural phenomena such as earthquakes, floods, etc. |
Also Called: | Drought,Earthquakes,Floods,Hurricanes,Tornado |
Previously Indexed: | Disasters (1966-1971) |
Volcanic Eruption - 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) |
Natural Disasters Medical Definitions and Terms
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