downcomer

[doun-kuhm-er]

noun

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

Origin of downcomer

First recorded in 1865–70; down¹ + comer

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for downcomer

Historical Examples of downcomer

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

British Dictionary definitions for downcomer

downcomer

noun

a pipe that connects a cistern to a WC, wash basin, etcAlso called: downcome

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