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It's the funny Greek u meaning micro.
Muhammad = uhammad
hammad is unit of how many hams are mad..
1 uhammad = 1E-6 hammads The hammad is a preferred unit.For example 106 hammads were studied.
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'Some pigs in the United States may be infected with a porcine form of mad cow disease, according to an alarming study by U.S. Department of Agriculture (USDA) scientists that has recently come to light.'
If one affected hammad were cut into 1 million pieces then each piece is a Muhammad or uhammad or microhammad.
I'm guessing a Muhammad is less than the size of slice of bacon.