GREGORIAN a.
plain song, or canto fermo, a kind of unisonous music, according to the eight celebrated church modes, as arranged and prescribed by Pope Gregory I. (called "the Great") in the 6th century. -- Gregorian modes, the musical scales ordained by Pope Gregory the Great, and named after the ancient Greek scales, as Dorian,…
GROUND n.
es (Marchantia polymorpha). -- Ground mail, in Scotland, the fee paid for interment in a churchyard. -- Ground mass (Geol.), the fine-grained or glassy base of a rock, in which distinct crystals of its constituents are embedded. -- Ground parrakeet (Zoöl.), one of several Australian parrakeets, of the genera Callips…