noun.
A translucent, reddish type of zircon used as a gemstone.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a red transparent variety of zircon used as a gemstone
Word Usage
"They are also frequently and incorrectly called jacinth or hyacinth, terms which, as we have seen, should be reserved for yellow and red zircon, respectively."