[ boil-awf, -of ]
/ ˈbɔɪlˌɔf, -ˌɒf /
Rocketry. any vapor loss from the oxidizer or fuel in a rocket during countdown.
Also called boil·ing-off [boi-ling-awf, -of] /ˈbɔɪ lɪŋˈɔf, -ˈɒf/. Textiles.
- the process of degumming silk.
- the process of removing sizing, wax, impurities, etc., from fabric by scouring.
Origin of boil-off
First recorded in 1955–60; noun use of verb phrase boil off
Definition for boil off (2 of 2)
[ boil ]
/ bɔɪl /
verb (used without object)
to change from a liquid to a gaseous state, producing bubbles of gas that rise to the surface of the liquid, agitating it as they rise.
to reach or be brought to the boiling point: When the water boils, add the meat and cabbage.
to be in an agitated or violent state: The sea boiled in the storm.
to be deeply stirred or upset.
to contain, or be contained in, a liquid that boils: The kettle is boiling. The vegetables are boiling.
verb (used with object)
to cause to boil or to bring to the boiling point: Boil two cups of water.
to cook (something) in boiling water: to boil eggs.
to separate (sugar, salt, etc.) from a solution containing it by boiling off the liquid.
the act or an instance of boiling.
the state or condition of boiling: He brought a kettle of water to a boil.
an area of agitated, swirling, bubbling water, as part of a rapids.
Also called blow. Civil Engineering. an unwanted flow of water and solid matter into an excavation, due to excessive outside water pressure.
- to reduce the quantity of by boiling off liquid.
- to shorten; abridge.
- to be simplifiable or summarizable as; lead to the conclusion that; point: It all boils down to a clear case of murder.
- to overflow while boiling or as if while boiling; burst forth; erupt.
- to be unable to repress anger, excitement, etc.: Any mention of the incident makes her boil over.
Origin of boil1
1250–1300; Middle English boillen < Anglo-French, Old French boillir < Latin bullīre to bubble, effervesce, boil, verbal derivative of bulla bubble
4. Boil, seethe, simmer, stew are used figuratively to refer to agitated states of emotion. To boil suggests the state of being very hot with anger or rage: Rage made his blood boil. To seethe is to be deeply stirred, violently agitated, or greatly excited: A mind seething with conflicting ideas. To simmer means to be on the point of bursting out or boiling over: to simmer with curiosity, with anger. To stew is to worry, to be in a restless state of anxiety and excitement: to stew about ( or over ) one's troubles.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for boil off (1 of 3)
to remove or be removed (from) by boilingto boil off impurities
British Dictionary definitions for boil off (2 of 3)
/ (bɔɪl) /
to change or cause to change from a liquid to a vapour so rapidly that bubbles of vapour are formed copiously in the liquidCompare evaporate
to reach or cause to reach boiling point
to cook or be cooked by the process of boiling
(intr) to bubble and be agitated like something boiling; seethethe ocean was boiling
(intr) to be extremely angry or indignant (esp in the phrase make one's blood boil)she was boiling at his dishonesty
(intr) to contain a boiling liquidthe pot is boiling
the state or action of boiling (esp in the phrases on the boil, off the boil)
Derived Formsboilable, adjective
Word Origin for boil
C13: from Old French boillir, from Latin bullīre to bubble, from bulla a bubble
British Dictionary definitions for boil off (3 of 3)
/ (bɔɪl) /
a red painful swelling with a hard pus-filled core caused by bacterial infection of the skin and subcutaneous tissues, esp at a hair follicleTechnical name: furuncle
Word Origin for boil
Old English bӯle; related to Old Norse beyla swelling, Old High German būlla bladder, Gothic ufbauljan to inflate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for boil off
[ boil ]
A painful, circumscribed pus-filled inflammation of the skin and subcutaneous tissue usually caused by a local staphylococcal infection.furuncle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for boil off
[ boil ]
To change from a liquid to a gaseous state by being heated to the boiling point and being provided with sufficient energy. Boiling is an example of a phase transition.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Idioms and Phrases with boil off
In addition to the idioms beginning with boil
- boil down
- boiling point
- boil over
- make one's blood boil
- watched pot never boils
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.