[val-id] /ˈvæl ɪd/
sound; just; well-founded:
a valid reason.
producing the desired result; effective:
a valid antidote for gloom.
having force, weight, or cogency; authoritative.
legally sound, effective, or binding; having legal force:
a valid contract.
Logic. (of an argument) so constructed that if the premises are jointly asserted, the conclusion cannot be denied without contradiction.
Archaic. robust; well; healthy.
having some foundation; based on truth
legally acceptable: a valid licence
having some force or cogency: a valid point in a debate
(logic) (of an inference or argument) having premises and conclusion so related that whenever the former are true the latter must also be true, esp (formally valid) when the inference is justified by the form of the premises and conclusion alone. Thus Tom is a bachelor; therefore Tom is unmarried is valid but not formally so, while today is hot and dry; therefore today is hot is formally valid Compare invalid2 (sense 2)
(archaic) healthy or strong
1570s, “having force in law, legally binding,” from Middle French valide, from Latin validus “strong, effective,” from valere “be strong” (see valiant). The meaning “supported by facts or authority” is first recorded 1640s.
[val-i-deyt] /ˈvæl ɪˌdeɪt/ verb (used with object), validated, validating. 1. to make ; substantiate; confirm: Time validated our suspicions. 2. to give legal force to; legalize. 3. to give official sanction, confirmation, or approval to, as elected officials, election procedures, documents, etc.: to validate a passport. /ˈvælɪˌdeɪt/ verb (transitive) 1. to confirm or corroborate 2. […]
[vair-ee-uh-buh l] /ˈvɛər i ə bəl/ adjective 1. apt or liable to or change; changeable: variable weather; variable moods. 2. capable of being or changed; alterable: a variable time limit for completion of a book. 3. inconstant; fickle: a variable lover. 4. having much or diversity. 5. Biology. deviating from the usual type, as a […]
[vas-kyuh-ler] /ˈvæs kyə lər/ adjective, Biology. 1. pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap. /ˈvæskjʊlə/ adjective 1. (biology, anatomy) of, relating to, or having vessels that conduct and circulate liquids: a vascular bundle, the blood vascular system adj. 1670s, from Modern Latin vascularis “of […]
[vas-kyuh-ler] /ˈvæs kyə lər/ adjective, Biology. 1. pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap. /ˈvæskjʊlə/ adjective 1. (biology, anatomy) of, relating to, or having vessels that conduct and circulate liquids: a vascular bundle, the blood vascular system adj. also nonvascular, 1815, from non- + […]