[mahy-kroh] 
adjective, noun, plural -cros.| 1. | extremely small. |
| 2. | minute in scope or capability. |
| 3. | of or pertaining to microcomputers. |
| 4. | of or pertaining to microeconomics. |
| a combining form with the meanings “small” (microcosm; microgamete), “very small in comparison with others of its kind” (microcassette; microlith), “too small to be seen by the unaided eye” (microfossil; microorganism), “dealing with extremely minute organisms, organic structures, or quantities of a substance” (microdissection; microscope), “localized, restricted in scope or area” (microburst; microhabitat), “(of a discipline) focusing on a restricted area” (microeconomics), “containing or dealing with texts that require enlargement to be read” (microfilm; microreader), “one millionth” (microgram). |
| mi·cro (mī'krō) adj.
[From micro-.] |
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). |
micro
microprocessor