Definition: The Greek word for "mni" is "mikros", which means "one in many," referring to a number or quantity that may be infinite. The term "micron," derived from microm, refers to a particle with a size of one billionth of an inch (0.0000001 meters). The word "micro" comes from the prefix "mi-" which means "one." Thus, micro- is a small-sized unit that can be measured in both nanometers (10^(-9) meters) and micrometers (10^(-6) meters).
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