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

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


Short "hint"

n. -A substance that chemically removes oxygen from other substances, especially by donating an electron or electrons.

Usage examples (6)
  • The product consists of a mix of humic acids, algae extracts, a non-hormonal reductant plant metabolite, and vitamins.
  • That ammonia becomes the reductant for the second stage SCR catalyst.
  • Additional protective mechanisms involve proteins that reduce the quinone pool using NADPH as the reductant, e.g.,
  • Electrophoretic mobility-shift assays showed αCTD interaction with trxB promoter DNA, but addition of Spx generated a supershifted complex that was disrupted in the presence of... 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,,, and YouTube,,,,, as well as the generous Creative Commons community.