pico-

Origin

pico-

a combining form meaning “one trillionth” (10−12): picogram.

Origin:
< Spanish pico peak, beak, bit. See pic2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Pico- is always a great word to know.
So is zedonk. Does it mean:
a fool or simpleton; ninny.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
pico-
 
prefix
p denoting 10--12: picofarad
 
[from Spanish pico small quantity, odd number, peak]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

pico-
1915, adopted c.1952 as a scientific prefix meaning "one trillionth," from Sp. pico "a little over, a small balance," lit. "sharp point, beak," of Celtic origin (cf. Gaul. beccus "beak"). Picosecond first recorded 1966.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

pico- pref.

  1. One-trillionth (10-12): picogram.

  2. Very small: picornavirus.

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

pico- definition


prefix

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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