the GNU version of the Collaborative International Dictionary of English
n. Imperfect or partial transparency.
The Century Dictionary and Cyclopedia
n. Imperfect transparency; partial opaqueness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the quality of allowing light to pass diffusely
Word Usage
"They quickly lose their peculiar glistening polish, their semitransparency is lost, and the natural tint of a pearl-like blue gives way to a dirty yellow."