...It contains musculartissue, which, by contracting or relaxing, lessens or dilates the pupillaryopening... 
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...purecrystals if possible) is needed for use in diluteform for relaxing dried skins...
Leon Luther Pray 「Taxidermy」
...When it wishes to rise again, the bladder is expanded by relaxing the pressure...
Ernst Haeckel 「The Evolution of Man」
...Wells' fists kept tensing and relaxing as he peered for a sightof the enemy in the teleview...
Various 「Astounding Stories, February, 1931」
...The afternoons are excessively relaxing, foralthough the mercury falls a little after three o'clock, still themorning's heat appears to remain until the sun has actually set...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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