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  • intra-
    intra-
    a prefix meaning “within,” used in the formation of compound words.
  • intra–
    intra–
    A prefix meaning “inside” or “within,” as in intravenous, within a vein.
Synonyms

intra-

American  
  1. a prefix meaning “within,” used in the formation of compound words.

    intramural.


intra- British  

prefix

  1. within; inside

    intravenous

"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

intra– Scientific  
  1. A prefix meaning “inside” or “within,” as in intravenous, within a vein.


Etymology

Origin of intra-

< Late Latin intrā-, representing Latin intrā (adv. and preposition); akin to interior, inter-

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Surprisingly, despite having weaker social ties, stranger pairs demonstrated more robust intra- and inter-brain EEG networks than acquainted pairs," comments Dr. Kurihara.

From Science Daily • Apr. 23, 2024

“Limitations in effective infection control and prevention and staff members working in multiple facilities contributed to intra- and interfacility spread,” the agency said at the time.

From New York Times • Sep. 10, 2020

Along the way, intra- and interdenominational battle lines are meticulously redrawn—Mennonites and Wesleyans vs. the Reformed tradition, Presbyterians vs.

From Slate • Jan. 6, 2014

For example, during intra- and interspecific competition, the reproductive rates of the species will usually be lower, reducing their populations’ rate of growth.

From Textbooks • Apr. 25, 2013

It will be seen later that the results of intra- and extra-peritoneal wounds of the bladder fully confirm this view, as all extra-peritoneal injuries died, while many intra-peritoneal perforations recovered spontaneously.

From Surgical Experiences in South Africa, 1899-1900 Being Mainly a Clinical Study of the Nature and Effects of Injuries Produced by Bullets of Small Calibre by Makins, George Henry

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