Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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name
A surname from Scottish Gaelic.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
name
An unincorporated community in Black Hawk County, Iowa, United States.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
name
A city in Okmulgee County, Oklahoma, United States.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A glass or metal double-walled flask for holding a liquid without much loss or gain of heat; a vacuum bottle or thermos. Generally used for scientific purposes and in particular for cryogenic work.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A vacuum flask; a vessel which keeps its contents hotter or cooler than their environment without the need to modify the pressure, by interposing an evacuated region to provide thermal insulation between the contents and the environment.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
vacuum flask that holds liquid air or helium for scientific experiments
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: Dewar flask
Antonyms: none provided
Broader terms: vacuum flask, vacuum bottle
noun
Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: Sir James Dewar
Antonyms: none provided
Broader terms: chemist, physicist
History
From Scottish Gaelic deòradh (“pilgrim, stranger”), an occupational surname for a custodian of holy relics. It could also be an habitational surname, from Dewar, Scottish Borders. The flask is named for James Dewar, who is credited with its invention.
Named after British physicist and chemist James Dewar, its inventor.
Across languages
4 source translations are retained for this English entry.
