Usage: usually capitalized M
: zircon that is naturally or artificially made colorless
* * *
/mah"teuhr euh, mat"euhr euh/, Jewelry.
a zircon heat-treated to render it colorless: not a true diamond.
Also, Matara diamond.
[1875-80; after Matura, town in Sri Lanka]
Useful english dictionary. 2012.