The Collaborative International Dictionary of English v.0.48:

ovoflavin \ovoflavin\ n.
   An uncommon name for riboflavin, also called vitamin B2.

   Syn: vitamin B2, vitamin G, riboflavin, lactoflavin,
        lactoflavine, hepatoflavin.
        [WordNet 1.5] Ovoid

The Collaborative International Dictionary of English v.0.48:

vitamin B2 \vitamin B2\ n.
   a B vitamin that prevents skin lesions and weight loss.

   Syn: vitamin G, riboflavin, lactoflavin, ovoflavin,
        hepatoflavin.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

vitamin B2
    n 1: a B vitamin that prevents skin lesions and weight loss
         [syn: vitamin B2, vitamin G, riboflavin,
         lactoflavin, ovoflavin, hepatoflavin]