from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One millionth (10-6) of a second.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An SI unit of time equal to 10−6 seconds. It is commonly represented with symbol µs.
from The Century Dictionary and Cyclopedia
- n. One millionth of a second: a unit employed in the measurement of exceedingly small intervals of time.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one millionth (10^-6) of a second; one thousandth of a millisecond
micro- + second (Wiktionary)