Webster
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Webster’s Revised Unabridged Dictionary · 1913

Boiling

Boil′ing, a. Heated to the point of bubbling; heaving with bubbles; in tumultuous agitation, as boiling liquid; surging; seething; swelling with heat, ardor, or passion.

Boiling point, the temperature at which a fluid is converted into vapor, with the phenomena of ebullition. This is different for different liquids, and for the same liquid under different pressures. For water, at the level of the sea, barometer 30 in., it is 212 ° Fahrenheit; for alcohol, 172.96°; for ether, 94.8°; for mercury, about 675°. The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent above the level of the sea. — Boiling spring, a spring which gives out very hot water, or water and steam, often ejecting it with much force; a geyser. — To be at the boiling point, to be very angry. — To keep the pot boiling, to keep going on actively, as in certain games. [Colloq.]

Boil′ing, n. 1. The act of ebullition or of tumultuous agitation.

2. Exposure to the action of a hot liquid.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.