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retro-

1.
a prefix occurring in loanwords from Latin meaning “backward” (retrogress); on this model, used in the formation of compound words (retrorocket).
Origin
< Latin, representing retrō (adv.), backward, back, behind
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for retro-

retro-

prefix
1.
back or backwards retroactive
2.
located behind retrolental
Word Origin
from Latin retrō behind, backwards
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for retro-
retro-
prefix meaning "backwards, behind," from L. retro (prep.) "backward, back, behind," probably originally the ablative form of *reteros, based on re- "back." Common in combinations in post-classical Latin.
Online Etymology Dictionary, © 2010 Douglas Harper
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retro- in Medicine

retro- pref.

  1. Backward; back: retroposition.

  2. Situated behind: retroperitoneum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Difficulty index for retro-

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Word Value for retro

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