~ 1 [ 'rɪgɔ: , 'rʌɪgɔ: , -gə ]
■ noun Medicine
1》 a sudden feeling of cold accompanied by shivering and a rise in temperature, especially at the onset or height of a fever.
2》 short for ~ mortis .
Origin
ME: from L., lit. 'stiffness', from rigere 'be stiff'.
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~ 2
■ noun US spelling of rigour .