What is the meaning of vitamin?

noun

  • Any of a group of organic substances essential in small quantities to normal metabolism. .
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APAWordNet. (2010). vitamin. Retrieved January 21, 2018, from http://smartdefine.org/vitamin/definitions/1249684
ChicagoWordNet. 2010. "vitamin" http://smartdefine.org/vitamin/definitions/1249684 (accessed January 21, 2018).
HarvardWordNet 2010, vitamin, Smart Define, viewed 21 January, 2018, <http://smartdefine.org/vitamin/definitions/1249684>.
MLAWordNet. "vitamin" 23 October 2010. Web. 21 January 2018. <http://smartdefine.org/vitamin/definitions/1249684>