verb (used with object), ver·nal·ized, ver·nal·iz·ing.

to shorten the growth period of (a plant) by chilling or other special treatment of it, its seeds, or its bulbs.

Also especially British, ver·nal·ise.

Origin of vernalize

First recorded in 1820–30; vernal + -ize
Related formsver·nal·i·za·tion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for vernalize




to subject ungerminated or germinating seeds to low temperatures, which is essential for many (plants) of temperate environments to ensure germination in some species and flowering in others
Derived Formsvernalization or vernalisation, noun
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