(idiomatic, often attributively) A person who, or thing which, is in a gradually worsening situation without any realization of the peril until it is too late.

(idiomatic) extremely angry

(idiomatic) To maintain one's livelihood; to continue to procure the necessities of living. / (idiomatic) To continue going on actively, as in certain games.

A small cylindrical vessel used to heat substances in the flame of a Bunsen burner.

plural of boiling tube

A primitive method of boiling water or milk by dropping hot stones into it.

present participle of double boil

present participle of hard-boil

present participle of boil up

present participle of boil over