infra-


a prefix meaning “below,” used, with second elements of any origin, in the formation of compound words: infrasonic; infrared.

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ELEMENTARY SCHOOL PUNCTUATION QUIZ

Punctuation marks help make writing easy to read and understand. Some of the most important ones are the period (.), comma (,), question mark (?), and exclamation point (!). How well do you know how to use them? Find out in this quiz!
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Origin of infra-

< Latin, representing infrā, adv. or preposition
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for infra-

infra-

prefix

below; beneath; afterinfrasonic; infralapsarian

Word Origin for infra-

from Latin infrā
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 infra-

infra-

pref.

Inferior to, below, or beneath:infrasonic.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.