thermoneutraladj.

1961 Webster's 3rd New Internat. Dict. Eng. Lang.

1966 Respiration Physiol. I. 30 The thermoneutral skin temperature zone for fasting adult sheep has been found to be 33–35°C as determined by immersion in a water bath.

1976 Nature 13 May 134/1 Neonates and infants were tested using a tight-fitting face mask with minimal dead space while the subjects were asleep in a thermoneutral condition.

1977 Lancet 7 May 988/1 The incubator should if possible be kept at the lower end of the thermoneutral range.

1970 Nature 12 Sept. 1097/1 Because the translational energies of the reactant ions are approximately thermal, these two reactions must be thermoneutral or exothermic.

1971 Sci. Amer. Dec. 57/3 The first and second reactions are strongly endothermic; the third is exothermic; the fourth is essentially thermoneutral.

1977 I. M. Campbell Energy & Atmosphere v. 106 It appears probable that this depends upon the attack of radicals like CH upon N₂ in a near thermoneutral elementary reaction.

1881 H. Watts Dict. Chem. VIII. 985 The term thermo-neutrality is employed..to express the fact that the quantity of heat evolved or absorbed when a salt is dissolved in water already containing equivalent quantities of other salts, is, for the most part, the same that it would be if the former salt were dissolved in pure water.

1960 K. Schmidt-Nielsen Animal Physiol. iii. 43 Thus, man has a narrow range of thermoneutrality between 27°C and 31°C.

1979 Nature 24 May 322/1 The abnormal thermoregulatory thermo~genesis quantitatively accounts for most of the metabolic efficiency of the obese animals as pair feeding at thermo~neutrality rather than at 23°C reduces the excess fat deposited by 65%.