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houseplant

[hous-plant, -plahnt]
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noun
  1. an ornamental plant that is grown indoors or adapts well to indoor culture.
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Origin of houseplant

First recorded in 1870–75; house + plant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for house plant

house plant

noun
  1. a plant that can be grown indoors
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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