Definition of "microsecond" [microsecond]

• One millionth (10-6) of a second. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Only a slight variation like a different hand placement for a microsecond might be the difference for any given scenario -- nothing more than that."
• "According to NASA, a complex computer model's preliminary calculation shows that Earth's days should have shortened by 1.26 microseconds (a microsecond is a one millionth of a second)."
• "A microsecond is a unit of time equal to one millionth (10-6) of a second."