Definitions for saltireˈsæl tɪr, -taɪər, ˈsɔl-
Random House Webster's College Dictionary
sal•tireˈsæl tɪr, -taɪər, ˈsɔl-(n.)
a heraldic charge formed by the crossing of a bend and a bend sinister.
Origin of saltire:
1350–1400; < MF sautoir crossed jumping bar < ML saltātōrium
St. Andrew's cross, saltire(noun)
a cross resembling the letter x, with diagonal bars of equal length
An ordinary (geometric design) in the shape of an X. It usually occupies the entire field in which it is placed.
a St. Andrew's cross, or cross in the form of an X, -- one of the honorable ordinaries