Relaxation
The Student's Medical Dictionary · 1896 · p. 553
(re-laks-a’ -shun) [re, again; laxare, to loosen]. A dim unition of tension in a part; a diminution in functional activity, as, e. g., R. of the skin. 553
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The American Dictionary and Cyclopedia (1910)
Nuttall's Standard Dictionary of the English Language (1890)
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