n.
See arborvitae (sense 1).
[New Latin Thuja, arborvitae genus, from Medieval Latin thuia, cedar, from Greek thuiā.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.