Feeding or subsisting on grass, and the like food;
-- said of horses, cattle, and other animals.
A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
1. Almond-shape...