|Main Entry:||Dobson unit|
|Part of Speech:||n|
|Definition:||a unit of measurement for ozone in the atmosphere; one Dobson unit represents the amount of atmospheric ozone that would form a uniform layer 0.01 millimeter (10 micrometers) thick at standard temperature (0 °C) and pressure|
|Etymology:||named for the British physicist G.M.B. Dobson|
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