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

  • noun a vitamin essential for normal vision (C20H30O); it prevents night blindness or inflammation or dryness of the eyes; same as vitamin A. One U.S.P. unit of vitamin A is equivalent to 0.30 micrograms of pure vitamin A alcohol.

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

  • noun Vitamin A

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

  • noun any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes


Sorry, no etymologies found.



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  • .

    June 20, 2009

  • ?

    June 20, 2009

  • It was a workaround. Everything I added was appearing in duplicate, so to delete one instance of the word I had to add a comment to make it different from the other instance. Oh, never mind...

    June 20, 2009

  • And has your doppelganger now retired?

    June 20, 2009

  • Ich weiss nicht.

    June 20, 2009

  • Apparently so, but who knows?

    June 20, 2009