Late Latin, from Latin intra, from Old Latin *interus, adjective, inward — more at interior

Oct 13, 2023 · What does the prefix “intra-” mean? The prefix “intra-” means “within” or “inside.” Some words with the prefix “intra-” include: Intravenous: Relating to or occurring inside the …

The prefixes inter- and intra- are commonly confused because of their similar spellings, but once you look at their definitions, it’s easy to tell the difference. Inter- refers to something that’s …

INTRA- definition: 1. used to form adjectives meaning "within" (the stated place or group): 2. used to form…. Learn more.

Dec 14, 2025 · A direction that is inward or into the location indicated by the root word. intra cavitary is into a cavity of the body, intra cloacal is into or within the cloaca, intra cistern is into …

Definition of intra- prefix in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

INTRA- definition: a prefix meaning “within,” used in the formation of compound words. See examples of intra- used in a sentence.

Definition of 'intra-' intra- in British English British prefix within; inside

Britannica Dictionary definition of INTRA- 1 : within something intra mural — opposite extra- 2 : in or into something

Although they look similar, the prefix intra- means "within" (as in happening within a single thing), while the prefix inter- means "between" (as in happening between two things).