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precursor

pre·cur·sor / ˈprēˌkərsər; priˈkər-/ • n. a person or thing that comes before another of the same kind; a forerunner: a three-stringed precursor of the violin| [as adj.] precursor cells. ∎  Biochem. a substance from which another is formed, esp. by metabolic reaction: pepsinogen is the inactive precursor of pepsin.

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"precursor." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"precursor." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/precursor

"precursor." The Oxford Pocket Dictionary of Current English. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/precursor

precursor

precursor (pri-ker-ser) n. a substance from which another, usually more biologically active, substance is formed. For example, trypsinogen is the precursor of the enzyme trypsin.

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"precursor." A Dictionary of Nursing. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"precursor." A Dictionary of Nursing. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/precursor

"precursor." A Dictionary of Nursing. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/precursor

precursor

precursor XVI. — L. præcursor, f. præcurrere, f. præ- PRE- + currere run; see COURSE, -OR1.

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"precursor." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"precursor." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/precursor-0

"precursor." The Concise Oxford Dictionary of English Etymology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/precursor-0