Definition of invalid

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Invalid (a.) Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement..

Lern More About Invalid

Invalidating :: Invalidating (p. pr. & vb. n.) of Invalidat.
Impatience :: Impatience (n.) The quality of being impatient; want of endurance of pain, suffering, opposition, or delay; eagerness for change, or for something expected; restlessness; chafing of spirit; fretfulness; passion; as, the impatience of a child or an invalid..
Inconsequent :: Inconsequent (a.) Not following from the premises; not regularly inferred; invalid; not characterized by logical method; illogical; arbitrary; inconsistent; of no consequence.
Nurse :: Nurse (v. t.) To take care of or tend, as a sick person or an invalid; to attend upon..
Nurse :: Nurse (v. t.) To bring up; to raise, by care, from a weak or invalid condition; to foster; to cherish; -- applied to plants, animals, and to any object that needs, or thrives by, attention..
Arrowroot :: Arrowroot (n.) A nutritive starch obtained from the rootstocks of Maranta arundinacea, and used as food, esp. for children an invalids; also, a similar starch obtained from other plants, as various species of Maranta and Curcuma..
Invalidness :: Invalidness (n.) Invalidity; as, the invalidness of reasoning..
Null :: Null (a.) Of no legal or binding force or validity; of no efficacy; invalid; void; nugatory; useless.
Frustrate :: Frustrate (v. t.) To make null; to nullifly; to render invalid or of no effect; as, to frustrate a conveyance or deed..
Invalid :: Invalid (a.) A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health..
Invalid :: Invalid (a.) Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement..
Sanatorium :: Sanatorium (n.) An establishment for the treatment of the sick; a resort for invalids. See Sanitarium.
Invalidate :: Invalidate (v. t.) 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..
Invalidation :: Invalidation (n.) The act of inavlidating, or the state of being invalidated..
Invalid :: Invalid (a.) Of no force, weight, or cogency; not valid; weak..
Vitiation :: Vitiation (n.) The act of vitiating, or the state of being vitiated; depravation; corruption; invalidation; as, the vitiation of the blood; the vitiation of a contract..
Racahout :: Racahout (n.) A preparation from acorns used by the Arabs as a substitute for chocolate, and also as a beverage for invalids..
Invalid :: Invalid (v. t.) To make or render invalid or infirm.
Invalid :: Invalid (n.) Not well; feeble; infirm; sickly; as, he had an invalid daughter..
Irritancy :: Irritancy (n.) The state or quality of being null and void; invalidity; forfeiture.
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