What is that strengthens; giving or increasing strength. -- Strength"en*ing*ly, adv. Strengthening plaster (Med.), a plaster containing iron, and supposed to have tonic effects called?

strengthening — That strengthens; giving or increasing strength. -- Strength"en*ing*ly, adv. Strengthening plaster (Med.), a plaster containing iron, and supposed to have tonic effects. (Webster's 1913.)

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