Mascle

• (n.) A lozenge voided.
Found on http://thinkexist.com/dictionary/meaning/mascle/

Mascle

Mas'cle (măs'k'l) noun [ Old French mascle , French macle , Latin macula spot, mesh of a net, Late Latin macula , macla , mascla a scale of a coat of mail. See Mail armor.] (Her.) A lozenge voided.
Found on http://www.encyclo.co.uk/webster/M/28

mascle

diamond-shaped plate or scale
Found on http://phrontistery.info/m.html

Mascle

In heraldry a mascle is a lozenge voided.
Found on http://www.probertencyclopaedia.com/browse/UM.HTM
No exact match found