Webnoun dewar flask a type of vacuum flask, esp one used in scientific experiments to keep liquid air, helium, etc; Thermos 3; noun dewar flask a container with an evacuated space between two walls that are highly reflective, capable of maintaining its contents at a near-constant temperature over relatively long periods of time; thermos. 1; noun dewar flask … WebA cryogenic storage dewar (named after James Dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium ), whose boiling points are much lower than room temperature. Cryogenic storage dewars may take several different forms including open buckets, flasks with loose-fitting stoppers and self ...
Dewar Definition & Meaning - Merriam-Webster
WebPronunciation. Wordsmyth : Phonics : IPA : Entry formats. Standard : Classic : Lookup History: Dewar flask: Dewar flask pronunciation: du r flaesk. part of speech: noun: … WebDewar’s first-ever vacuum flask. Created in 1892 to hold liquefied gases at extremely low temperatures, this object is the forerunner of the Thermos flask. Date: 1892. Place made: Royal Institution. Alternative name: Dewar flask, thermos flask, early isolation vessel. Materials: Glass, tin, wax. ontario ca hunting regulations
How to pronounce James dewar
WebFeb 19, 2024 · Listen our video to compare your pronunciation! Want to know how other words sound like? Look for sir james dewar, vacuum flask, dewar vessel, dewar, dewar … WebOct 21, 2024 · The vacuum-seal flask is surprisingly old technology. It was first invented by Scottish chemist Sir James Dewar and presented to the Royal Institute in 1892. Six years later, he would be the first ... WebDictionary entry overview: What does Dewar mean? • DEWAR (noun) The noun DEWAR has 2 senses: 1. vacuum flask that holds liquid air or helium for scientific experiments. 2. Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923) Familiarity information: DEWAR used as a noun is rare. iom online appointment philippines