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ex·ter·nal

external

 
 
pronunciation:
ihk stuhr nl
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part of speech: adjective
definition: of the outside or outer part.
He cleaned only the external surfaces of the oven.Cold-blooded animals need warmth from external sources like the sun.
synonyms:
exterior, outer, outside, outward
antonyms:
inner, internal
similar words:
outlying, right
derivation: externally (adv.)
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The word external contains the following part:
extr-, extra-, exter- Latin prefix that means on the outside, beyond
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In Latin, "extrem" is the superlative form of "exter," just as in English "most" is the superlative form of "more." "Extrem," which is the basis of the basis of the English word "extreme " and its derivations, thus means "most outside" or "most beyond."
synonyms:
ec, ect, ecto, exo-, ex-