A hard, painful, inflamed tumor, which, on suppuration, discharges pus, mixed with blood, and discloses a small fibrous mass of dead tissue, called the core.(noun)
source: webster1913
verb (v)
come to the boiling point and change from a liquid to vapor(verb.change)
To be agitated, or tumultuously moved, as a liquid by the generation and rising of bubbles of steam (or vapor), or of currents produced by heating it to the boiling point; to be in a state of ebullition; as, the water boils.(verb)
source: webster1913
To heat to the boiling point, or so as to cause ebullition; as, to boil water.(verb)