: responding to or relating to a short photoperiod
used especially of a plant
compare day-neutral, long-day

Examples of short-day in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Short-Day Onions Long-day onions are usually planted in late winter to spring, but short-day onions are planted in fall, usually about 4 weeks before a hard freeze is expected in your area. Lauren Landers, The Spruce, 6 Sep. 2026 Texas Super Sweet, Georgia Sweet, and Sweet Red are short-day onions often grown in the South. Karen Brewer Grossman, Southern Living, 22 July 2026 After the first year of growth, remove most of the foliage from short-day plants in fall and remove older, browning foliage from day-neutral strawberries. Lauren Wellbank, Martha Stewart, 5 Mar. 2026 Too Much Light Unlike most plants that flower during the longer days of spring and summer, Christmas cactuses are short-day plants that form buds and flower only when the days get short in winter. Lauren Landers, Better Homes & Gardens, 5 Nov. 2025 See All Example Sentences for short-day

Word History

First Known Use

1920, in the meaning defined above

Time Traveler
The first known use of short-day was in 1920

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Cite this Entry

“Short-day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/short-day. Accessed 22 Sep. 2026.

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