Word Study
micro-
OXFORD DICTIONARY
micro-, comb. form 1 small (microchip).
2 denoting a factor of one millionth (10(-6)) (microgram).
2 denoting a factor of one millionth (10(-6)) (microgram).
Usage
Symb.: {divide}.
Etymology
Gk mikro- f. mikros small
For further exploring for "micro-" in Webster Dictionary Online