n.
An opal that is almost opaque when dry but transparent when wet.
hydrophanous hy·droph'a·nous (hī-drŏf'ə-nəs) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
