[ahr-buh-ree-tuh m]
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noun, plural ar·bo·re·tums, ar·bo·re·ta [ahr-buh-ree-tuh] /ˌɑr bəˈri tə/.
  1. a plot of land on which many different trees or shrubs are grown for study or display.

Origin of arboretum

1830–40; < Latin arborētum a plantation of trees, equivalent to arbor tree + -ētum suffix denoting place where a given plant grows (cf. alameda) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of arboretum

British Dictionary definitions for arboretum


noun plural -ta (-tə) or -tums
  1. a place where trees or shrubs are cultivated for their scientific or educational interest

Word Origin for arboretum

C19: from Latin, from arbor tree
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

Word Origin and History for arboretum

"tree-garden," 1838, from Latin arboretum, literally "a place grown with trees," from arbor "tree," of unknown origin, + -etum, suffix used to form the names of gardens and woods.

Online Etymology Dictionary, © 2010 Douglas Harper