attenuate

attenuate /at·ten·u·ate/ (ah-ten´u-at)

1. to render thin.

2. to render less virulent.

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at·ten·u·ate (-tny-t)

v.

1. To reduce in force, value, amount, or degree; weaken; diminish.

2. To make bacteria or viruses less virulent.

adj.

Reduced or weakened, as in strength, value, or virulence.