Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A white crystalline acid, C6H5NO2, of the vitamin B complex that is found in meat, wheat germ, dairy products, and yeast and is used to treat and prevent pellagra.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A B vitamin (vitamin B5) essential for the normal function of the nervous system and the gastrointestinal tract. Called also nicotinic acid and antipellagra vitamin. Chemical formula C6H5NO2, chemically it is 3-pyridinecarboxylic acid.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry A water-soluble vitamin, a component of vitamin B complex, found in meat, yeast, and dairy products; it is essential to metabolism.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[ni(cotinic) ac(id) + –in.]

Examples

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

  • However, by some sort of luck, this process also makes the vitamin niacin available from the grain, thus preventing pellagra (niacin deficency), a rather debilitating disease.

    Frijol---Frijoles

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