Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL: www.learnthat.org

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University
{%wordnet%}
Definitions.net
{%definitions_com%}

Videos

Short "hint"

n. - A B vitamin essential for the normal function of the nervous system and the gastrointestinal tract.

edit
Usage examples (26)
  • Until recently, only exercise and mega-doses of the vitamin niacin have been shown to boost HDL levels.
  • Vitamin K and Vitamin B-3, also known as niacin, have long been known to have
  • Peanuts are a rich source of niacin, which is another nutrient that helps to increase the release of serotonin in the system.
  • Vitamin B3, also commonly called niacin, is a member of the B-complex vitamin family whose discovery was related to work by the U.S.
...click for more
Tutoring comment


Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.