purpurin

  1. Noun.  A red anthraquinone dye, extracted from madder, that is used as a biological stain.
  2. Noun.  (biochemistry) A protein of the lipocalin family.
  3. Noun.  A brownish or deep red decorative glass used in ancient times.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.