DictionarynullPronunciation: (nul), [key] —adj. 1. without value, effect, consequence, or significance. 2. being or amounting to nothing; nil; lacking; nonexistent. 3. Math.(of a set) a. empty. b. of measure zero. 4. being or amounting to zero. 5. null and void, without legal force or effect; not valid: This contract is null and void. —n. Electronics.a point of minimum signal reception, as on a radio direction finder or other electronic meter. —v.t. to cancel; make null. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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