Dictionary.com

poly

1
[ pol-ee ]
/ ˈpɒl i /
Save This Word!

noun, plural pol·ies.
Informal. polyester (def. 2):a blend of poly and cotton.
a fabric or garment made of polyester.
adjective
made of or containing polyester: a poly swimsuit.
QUIZ
FIRE UP YOUR VOCAB FOR A "RED" SYNONYMS QUIZ
No fire engine reds here, only a fierce collection of vibrant words for the color red to test yourself on.
Question 1 of 7
What does "amaranth" mean?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of poly

1
By shortening

Other definitions for poly (2 of 4)

poly2
[ pol-ee ]
/ ˈpɒl i /

adjective Informal.
noting or relating to polyamory; polyamorous: They’re in a poly relationship.
identifying as polyamorous: They’re not monogamous, they’re poly.

Origin of poly

2
First recorded in 1990–95; shortening of polyamorous

Other definitions for poly (3 of 4)

poly-

a combining form with the meanings “much, many” and, in chemistry, “polymeric,” used in the formation of compound words: polyandrous; polyculture; polyethylene.

Origin of poly-

<Greek, combining form representing polýs; akin to Old English fela many. See plus

Other definitions for poly (4 of 4)

poly.

abbreviation
polytechnic.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use poly in a sentence

British Dictionary definitions for poly (1 of 2)

poly
/ (ˈpɒlɪ) /

noun plural polys
informal short for polytechnic
adjective
informal short for polyester
informal short for polythene

British Dictionary definitions for poly (2 of 2)

poly-

combining form
more than one; many or muchpolyhedron
having an excessive or abnormal number or amountpolycythaemia

Word Origin for poly-

from Greek polus much, many; related to Old English fela many
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 poly

poly-

pref.
More than one; many; much:polyatomic.
More than usual; excessive; abnormal:polydipsia.
Polymer; polymeric:polyethylene.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for poly

poly-

A prefix meaning “many,” as in polygon, a figure having many sides. In chemistry, it is used to form the names of polymers by being attached to the name of the base unit of which the polymer is made, as in polysaccharide, a polymer made of repeating simple sugars (monosaccharides).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK