microgram

1
[mahy-kruh-gram]
|

noun

a unit of mass or weight equal to one millionth of a gram, used chiefly in microchemistry. Symbol: μg

Nearby words

  1. microglia,
  2. microgliacyte,
  3. microglioma,
  4. microglossia,
  5. micrognathia,
  6. micrograph,
  7. micrographia,
  8. micrographic,
  9. micrographics,
  10. micrography

Also especially British, mi·cro·gramme.

Origin of microgram

1
First recorded in 1885–90; micro- + -gram2

microgram

2
[mahy-kruh-gram]

noun

Origin of microgram

2

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for microgram

  • It was balanced to a microgram—to a millionth of the combined weight of three aspirin tablets.

    Space Platform|Murray Leinster


Medicine definitions for microgram

microgram

[mīkrə-grăm′]

n.

A unit of weight equal to one-millionth (10-6) of a gram.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.