CFM (Cubic Feet Per Minute)

Business / Construction / CFM (Cubic Feet Per Minute): A rating that expresses the amount of air a blower or fan can move. The volume of air (measured in cubic feet) that can pass through an opening in one minute.

Permanganate

Science / Chemistry / Permanganate: Permanganate ion (mno4-) is a powerful oxidizing agent used in chemical analysis and water treatment. The ion has an intense purple color. MORE

Permanent Vegetative Cover

Business / Agriculture / Permanent Vegetative Cover: Trees, or perennial grasses, legumes, or shrubs with an expected life span of at least 5 years. Permanent cover is required on cropland entered into the Conservation Reserve Program. MORE

Permeability

Business / Construction / Permeability: A measure of the ease with which water penetrates a material. MORE

Permeable

Life Style / Painting / Permeable: Allows another material to pass through without effecting the existing material. MORE

Permission

Technology / Email / Permission: The implicit approval given when a person actively requests to have their own email address added to a list. MORE

Permian Period

Science / Biology / Permian Period: The last geologic time period of the Paleozoic Era, noted for the greatest mass extinction in earth history, when nearly 96% of species died out. MORE

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