lower critical temperature

the environmental temperature defining the lower limit of the THERMONEUTRAL ZONE of a tachymetabolic animal (see TACHYMETABOLISM). Below the lower critical temperature the animal must undergo REGULATORY HEAT PRODUCTION in addition to its BASAL METABOLIC RATE to maintain homoiothermy (see HOMOIOTHERM).

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

References in periodicals archive

"If the lower critical temperature is not right it will affect growth and immuno systems,'' said Mr Armstrong.

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Compared to unimodal materials, bimodal MDPE and HDPE materials show a significant increase in critical pressure and have considerably lower critical temperature values.

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At the same ambient temperatures, it has lower COP values and because of its lower critical temperature, has limited use as an air-source heat pump.

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