Advertisement

Advertisement

long-day

[ lawng-dey, long- ]

adjective

, Botany.
  1. requiring a long photoperiod in order to flower.


long-day

adjective

  1. (of certain plants) able to mature and flower only if exposed to long periods of daylight (more than 12 hours), each followed by a shorter period of darkness Compare short-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


Discover More

Word History and Origins

Origin of long-day1

First recorded in 1915–20
Discover More

Example Sentences

Mrs. Armine was fatigued by the journey, and by the long day at Denderah, which had secretly depressed her.

Then tears would cloud the beautiful black eyes, and the labours of the long day fell more heavily from the willing hands.

I'd rather get up even earlier than usual on a holiday, and feel we have the whole long day before us.

It was told afterward by the Shawnees that he killed more than that weak-hearted one during the long day.

The next day the gentlemen went fishing and Marion and Judith kept the long day to themselves.

Advertisement

Advertisement

Advertisement

Advertisement


long-datedlong-day plant