Medical Definition of investment
1: an external covering of a cell, part, or organism
2: a layer of heat-resistant material in which a dental appliance (as a bridge or inlay) is cast or in which it is embedded before soldering
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Dictionary: Definition of "investment" Thesaurus: All synonyms and antonyms for "investment" Spanish Central: Translation of "investment" Nglish: Translation of "investment" for Spanish speakers Britannica English: Translation of "investment" for Arabic speakers Britannica.com: Encyclopedia article about "investment"
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