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short-day

American  
[shawrt-dey] / ˈʃɔrtˈdeɪ /

adjective

Botany.

  1. requiring a short photoperiod.

short-day British  

adjective

  1. (of plants) able to flower only if exposed to short periods of daylight (less than 12 hours), each followed by a long dark period Compare long-day

"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

Etymology

Origin of short-day

First recorded in 1915–20

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.