Boil — Defs

01 v. i. 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 …

imp. & p. p. Boiled; p. pr. & vb. n. Boiling

1.
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.
2.
To be agitated like boiling water, by any other cause than heat; to bubble; to effervesce; as, the boiling waves.
“He maketh the deep to boil like a pot.” — Job xii. 31.
3.
To pass from a liquid to an aëriform state or vapor when heated; as, the water boils away.
4.
To be moved or excited with passion; to be hot or fervid; as, his blood boils with anger.
“Then boiled my breast with flame and burning wrath.” — Surrey.
5.
To be in boiling water, as in cooking; as, the potatoes are boiling.

Phrases & compounds

To boil away — to vaporize; to evaporate or be evaporated by the action of heat.

To boil over — to run over the top of a vessel, as liquid when thrown into violent agitation by heat or other cause of effervescence; to be excited with ardor or passion so as to lose self-control.

02 v. t. To heat to the boiling point, or so as to cause ebullition; as, to boil water.

1.
To heat to the boiling point, or so as to cause ebullition; as, to boil water.
2.
To form, or separate, by boiling or evaporation; as, to boil sugar or salt.
3.
To subject to the action of heat in a boiling liquid so as to produce some specific effect, as cooking, cleansing, etc.; as, to boil meat; to boil clothes.
“The stomach cook is for the hall, And boileth meate for them all.” — Gower.
4.
To steep or soak in warm water.[Obs.]
“To try whether seeds be old or new, the sense can not inform; but if you boil them in water, the new seeds will sprout sooner.” — Bacon.

Phrases & compounds

To boil down — to reduce in bulk by boiling; as, to boil down sap or sirup.

03 n. Act or state of boiling.

1.
Act or state of boiling.[Colloq.]

04 n. A hard, painful, inflamed tumor, which, on suppuration, discharges pus, mixed with blood, and discloses a small fibrous mass of dead tissue…

1.
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.

Phrases & compounds

A blind boil — one that suppurates imperfectly, or fails to come to a head.

Delhi boil — a peculiar affection of the skin, probably parasitic in origin, prevailing in India (as among the British troops) and especially at Delhi.