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Christmas tree

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noun

an evergreen tree decorated at Christmas with ornaments and lights.
a control board or panel containing a variety of colored lights for indicating the status of various functions, elements, components, etc.
an elaborate arrangement of pipes, valves, etc., as for controlling the flow of oil or gas.

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Origin of Christmas tree

An Americanism dating back to 1780–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for Christmas tree

Christmas tree

noun

an evergreen tree or an imitation of one, decorated as part of Christmas celebrations
Also called: Christmas bush Australian any of various trees or shrubs flowering at Christmas and used for decoration
another name for pohutukawa
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
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