the GNU version of the Collaborative International Dictionary of English
n. A measure of capacity in the metric system, containing the thousandth part of a liter. It is a cubic centimeter, and is equal to .061 of an English cubic inch, or to .0338 of an American fluid ounce.
The Century Dictionary and Cyclopedia
n. A French measure of capacity containing the thousandth part of a liter, equal to 0.06102 of a cubic inch.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a metric unit of volume equal to one thousandth of a liter
Word Usage
"Fifty picograms per milliliter is not anywhere close to offering a performance enhancement and a substance whose half life is 30+ hours would show higher traces for days before it dwindled to such a low level."