A hyperthermophile is an organism that thrives in extremely hot environments— from 60 °C (140 °F) upwards. An optimal temperature for the existence of hyperthermophiles is above 80 °C (176 °F). Hyperthermophiles are a subset of extremophiles, micro-organisms within the domain Archaea, although some bacteria are able to tolerate temperatures ... Found on http://en.wikipedia.org/wiki/Hyperthermophile
<endocrinology> Excess production of thyroid hormone caused by autoantibodies that bind to the thyroid stimulating hormone receptor and induce secretion of thyroxine by raising cAMP levels in the thyroid cells. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
Members of the Archaea that live and thrive in temperatures above 60°C, sometimes above 100°C (cf. thermophiles, which have a tolerance ceiling of about 60°C).
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