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1. Of a pale grayish or bluish green.
2. Botany Covered with a grayish, bluish, or whitish waxy coating or bloom that is easily rubbed off: glaucous leaves.

[Latin glaucus, from Greek glaukos.]

glau′cous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Botany) botany the state of being glaucous
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In a third study, QTLs were identified for days to ear emergence and flag leaf glaucousness under southern Australian conditions [71].
Seeds produced from four green-leaved [C.sub.2] plants were bulked to constitute the TBTE001 genetic stock, which will give rise to plants of all five genotypes for leaf glaucousness. The TBTE002 genetic stock resulted from intercrossing seven glaucous-leaved [C.sub.2] amphidiploid plants.