Dictionary.com

pico-

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

QUIZZES

THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST

In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion
a false belief or opinion.
the matter that settles to the bottom of a liquid.
the state of being isolated, kept apart, or withdrawn into solitude.
TAKE THE QUIZ TO FIND OUT

Origin of pico-

<Spanish pico peak, beak, bit. See pic2

Words nearby pico-

Pickwick, Samuel, picky, picloram, picnic, picnic races, pico-, Pico de Aneto, Pico della Mirandola, Pico de Teide, picofarad, picogram
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for pico-

pico-

prefix

denoting 10 –12picofarad Symbol: p

Word Origin for pico-

from Spanish pico small quantity, odd number, peak
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for pico-

pico-

pref.

One-trillionth (10-12):picogram.
Very small:picornavirus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.