PORCUPINE n.
plectognath fish having the body covered with spines which become erect when the body is inflated. See Diodon, and Globefish. -- Porcupine grass (Bot.), a grass (Stipa spartea) with grains bearing a stout twisted awn, which, by coiling and uncoiling through changes in moisture, propels the sharp-pointed and barbellat…
SAFETY n.
v. t. -- Safety belt, a belt made of some buoyant material, or which is capable of being inflated, so as to enable a person to float in water; a life preserver. -- Safety buoy, a buoy to enable a person to float in water; a safety belt. -- Safety cage (Mach.), a cage for an elevator or mine lift, having appliances t…