Hypertext Webster Gateway: "invalidating"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Invalidate \In*val"i*date\, v. t. [imp. & p. p. {Invalidated};
p. pr. & vb. n. {Invalidating}.] [From {Invalid} null.]
To render invalid; to weaken or lessen the force of; to
destroy the authority of; to render of no force or effect; to
overthrow; as, to invalidate an agreement or argument.

From WordNet (r) 1.7 (wn)

invalidating
adj : establishing as invalid or untrue [syn: {disconfirming}]


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