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(ˌθɜr moʊˌpɪər iˈɒd ɪk)

(of an organism)affected by periodic differences in temperatures.
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References in periodicals archive ?
Thermoperiodic control of stem elongation and endogenous gibberellins in Campanula isophylla.
Explanations for this event are related to thermoperiodic stimulation of the neuro-endocrine system, diurnal organization of behaviors and metabolic processes, circadian effects, and optimization of enzyme functioning (Beck 1983; Ratte 1985).
Thermoperiodic regulation of the circadian eclosion rhythm in the flesh fly, Sarcophaga crassipalpis.