n.
An active power or cause; that which has the power to produce an effect; as, a physical, chemical, or medicinal agent; as, heat is a powerful agent. →
a.
Having warm blood; -- applied especially to those animals, as birds and mammals, which have warm blood, or, more properly, the power of maintaining a nearly uniform temperature whatever the temperature of the surrounding air. See Homoiothermal. →
v. t.
To dig; to dig up by the roots; to root out by digging; -- followed by up; as, to grub up trees, rushes, or sedge. →
n.
Goods lost by shipwreck, and floating on the sea; -- in distinction from jetsam or jetson. →