AMYGDALOID n.
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.
BAND n. 2 definitions
A fillet, strap, or any narrow ligament with which a thing is encircled, or fastened, or by which a number of things are tied, bound together, or confined; a fetter. Every one's bands were loosed. Acis xvi 26.
BLOCK n.
oved pulley or sheave incased in a frame or shell which is provided with a hook, eye, or strap, by which it may be attached to an object. It is used to change the direction of motion, as in raising a heavy object that can not be conveniently reached, and also, when two or more such sheaves are compounded, to change the…