downcomer

American

[doun-kuhm-er] / ˈdaʊnˌkʌm ər /

noun

a pipe, tube, or passage for conducting fluid materials downward.

downcomer British

/ ˈdaʊnˌkʌmə /

noun

Also called: downcome. a pipe that connects a cistern to a WC, wash basin, etc

"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 downcomer

First recorded in 1865–70; down ¹ + comer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The gases produced by the combustion of the fuel and the reduction of the ore, together with the nitrogen of the air forced in through the tuyers, escape through pipes D, called downcomer pipes, which leave the furnace near the top.

From Project Gutenberg

But I dreaded to be found eating, alone in that vast room, by the first downcomer.

From Project Gutenberg

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