vanadium pentoxide

noun Chemistry.
  1. a yellow to red crystalline compound, V2O5, slightly soluble in water, used as a catalyst for organic reactions, in glass to absorb ultraviolet radiation, and as a photographic developer.

Origin of vanadium pentoxide

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018