Electronics. a point of minimum signal reception, as on a radio direction finder or other electronic meter.
verb (used with object)
6.
to cancel; make null.
Idioms
7.
null and void, without legal force or effect; not valid:
This contract is null and void.
Origin
1555-65; < Latinnūllus, equivalent to n(e) not + ūllus any
Examples from the web for null and void
Bankruptcy would have made the contracts null and void, at best in line with all the unsecured creditors.
Tax authorities are increasingly able to declare null and void any transaction whose sole purpose is the avoidance of tax.
Contracts signed by other county personnel are null and void and do not obligate the county for payment of goods and/or services.
Tax receipts are null and void if payment is made with a check that fails to clear the bank.
British Dictionary definitions for null and void
null
/nʌl/
adjective
1.
without legal force; invalid; (esp in the phrase null and void)
2.
without value or consequence; useless
3.
lacking distinction; characterless: a null expression
4.
nonexistent; amounting to nothing
5.
(maths)
quantitatively zero
relating to zero
(of a set) having no members
(of a sequence) having zero as a limit
6.
(physics) involving measurement in which an instrument has a zero reading, as with a Wheatstone bridge
Word Origin
C16: from Latin nullus none, from ne not + ullus any
Word Origin and History for null and void
null
adj.
"void of legal force," 1560s, from Middle French nul, from Latin nullus "not any, none," from ne- "not, no" (see un-) + illus "any," diminutive of unus "one" (see one).
null and void in Science
null
(nŭl) Of or relating to a set having no members or to zero magnitude.
Idioms and Phrases with null and void
null and void
Canceled, invalid, as in The lease is now null and void. This phrase is actually redundant, since null means “void,” that is, “ineffective.” It was first recorded in 1669.