- photoperiodicity
- pho·to·pe·ri·o·dic·i·ty (fo″to-pēr″e-o-disґĭ-te) photoperiodism.
Medical dictionary. 2011.
photoperiodicity
Look at other dictionaries:
photoperiodicity — pho·to·periodicity … English syllables
photoperiodicity — noun see photoperiodism * * * photoperiodicˈity noun • • • Main Entry: ↑photo … Useful english dictionary
Maize — This article is about the cereal grain, primarily known as corn in the United States. For other uses, see Maize (disambiguation). Corn redirects here. For other uses, see Corn (disambiguation). Maize Illustration depicting both male and female… … Wikipedia
Cannabis — This article is about the plant genus. For use as a psychoactive drug in the genus, see Cannabis (drug). Cannabis … Wikipedia
Occidental Mindoro — Province Seal … Wikipedia
photoperiodism — /foh teuh pear ee euh diz euhm/, n. Biol. the response, as affecting growth or reproduction, of an organism to the length of exposure to light in a 24 hour period. Also called photoperiodicity /foh toh pear ee euh dis i tee/. [1915 20;… … Universalium
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
photoperiodism — The periodic (seasonal or diurnal) activities, behavior, or changes in plants or animals brought about by the action of light. * * * pho·to·pe·ri·od·ism pir ē ə .diz əm also pho·to·pe·ri·od·ic·i·ty .pir ē ə dis ət ē n, pl isms also ties the… … Medical dictionary
Thomas A Wehr — Thomas Alvin Wehr, MD, scientist emeritus at the National Institute of Mental Health is a psychiatrist, research scientist, author, and former chief of the Clinical Psychobiology branch at NIMH. Dr. Wehr conducted a study about photoperiodicity… … Wikipedia
photoperiodism — [fōt΄ō pir′ēə dis′ə tēfōt΄ō pir′ē əd iz΄əm] n. Biol. the behavioral or physiological reaction of an organism to variations in the duration of light, as, in plants, by flowering or ceasing to flower, or, in certain animals, by changing the daily… … English World dictionary
