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thermosiphon

American  
[thur-muh-sahy-fuhn] / ˌθɜr məˈsaɪ fən /

noun

  1. an arrangement of siphon tubes that enables water in a heating apparatus to circulate by means of convection.

thermosiphon British  
/ ˌθɜːməʊˈsaɪfən /

noun

  1. a system in which a coolant is circulated by convection caused by a difference in density between the hot and cold portions of the liquid

"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

Etymology

Origin of thermosiphon

First recorded in 1825–35; thermo- + siphon

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.