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Pronunciation: fluks


  1. The discharge of a fluid material in large amounts from a cavity or surface of the body.
  2. Material discharged from the bowels.
  3. A material used to remove oxides from the surface of molten metal and to protect it when casting; serves a similar purpose in soldering operations.
  4. An ingredient in dental porcelain that by its lower melting temperature helps to bond the silica particles.
  5. The moles of a substance crossing through a unit area of a boundary layer or membrane per unit of time.
  6. Bidirectional movement of a substance at a membrane or surface.
  7. In diagnostic radiology, photon fluence per unit time.
  8. The strength of a field of force (magnetic) orthogonal to a unit area.
  9. The rate of chemical or physical transformation or translocation of a substance per unit time.

Synonym(s): flux density1

[L. fluxus, a flow]

See Also: diarrhea

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.