word-forming element meaning "small, microscopic; magnifying; one millionth," from Latinized comb. form of Greek mikros "small, little, petty, trivial, slight" (see mica).
micro- or micr-
pref.
Small: microblast.
Abnormally small: microcephaly.
Requiring or involving microscopy: microsurgery.
Symbol μ One-millionth (10-6): microliter.
micro- A prefix that means: "small" (as in microorganism) or "one millionth" (as in microsecond). |