REVOLUTION n. 7 definitions
Return to a point before occupied, or to a point relatively the same; a rolling back; return; as, revolution in an ellipse or spiral. That fear Comes thundering back, with dreadful revolution, On my defenseless head. Milton.
ROBIN n. 6 definitions
wings. -- Magrie robin (Zoöl.), an Asiatic singing bird (Corsycus saularis), having the back, head, neck, and breast black glossed with blue, the wings black, and the belly white. -- Ragged robin. (Bot.) See under Ragged. -- Robin accentor (Zoöl.), a small Asiatic singing bird (Accentor rubeculoides), somewhat rese…
ROCK n. 13 definitions
males are grayish brown, coarsely vermiculated with black, and have black patches on the back. -- Rock rabbit (Zoöl.), the hyrax. See Cony, and Daman. -- Rock ruby (Min.), a fine reddish variety of garnet. -- Rock salt (Min.), cloride of sodium (common salt) occuring in rocklike masses in mines; mineral salt; salt…
ROMAN CALENDAR n.
eplaced by the Julian calendar. In designating the days of the month, the Romans reckoned backward from three fixed points, the calends, the nones, and the ides. The calends were always the first day of the month. The ides fell on the 15th in March, May, July (Quintilis), and October, and on the 13th in other months. T…