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[lawng-dey, long-] /ˈlɔŋˈdeɪ, ˈlɒŋ-/

adjective, Botany.
requiring a long photoperiod in order to flower.
(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


Read Also:

  • Long-day plant

    long-day plant (lông’dā’) A plant that flowers only after being exposed to light periods longer than a certain critical length, as in summer. Spinach, lettuce, and some varieties of wheat are long-day plants. Compare day-neutral plant, short-day plant. See more at photoperiodism.

  • Longden

    [lawng-duh n, long-] /ˈlɔŋ dən, ˈlɒŋ-/ noun 1. John Eric (“Johnny”) 1907–2003, U.S. jockey and thoroughbred horse trainer, born in England.

  • Long-distance

    [lawng-dis-tuh ns, long-] /ˈlɔŋˈdɪs təns, ˈlɒŋ-/ adjective 1. of, from, or between distant places: a long-distance phone call. 2. for, over, or covering long distances: a long-distance runner. adverb 3. by long-distance telephone: to call someone long-distance. noun 1. telephone service between distant places. noun 1. (modifier) covering relatively long distances: a long-distance driver 2. […]

  • Long-division

    noun, Mathematics. 1. division, usually by a number of two or more digits, in which each step of the process is written down.

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