- extrathyroidal h. a state of increased metabolic rate with normal levels of thyroid hormone production.
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hy·per·me·tab·o·lism -mə-'tab-ə-.liz-əm n metabolism at an increased or excessive rate
hy·per·meta·bol·ic -.met-ə-'bäl-ik adj
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hy·per·me·tab·o·lism (hi″pər-mə-tabґo-liz-əm) increased metabolism; abnormally increased utilization of oxygen, nutrients, and other materials by the body.Medical dictionary. 2011.