an amendment to the u.s. const-tution, ratified in 1964, forbidding the use of the poll tax as a requirement for voting in national or u.s. congressional elections.
[twen-tee-fawr sev-uh n, ‐fohr‐, twuhn-tee‐] /ˈtwɛn tiˌfɔr ˈsɛv ən, ‐ˌfoʊr‐, ˈtwʌn ti‐/ adverb continually; constantly: they’re together 24/7. adjective continual; constant: the manufacturer offers 24/7 customer support. also, 24‐7, 24×7, twenty-four seven. twenty-four hours a day, seven days a week: “this convenience store is open 24/7.” the term, which also appears as “24-7,” can be […]
25-hydroxycholecalciferol 25-hy·drox·y·cho·le·cal·cif·er·ol (-hī-drŏk’sē-kō’lĭ-kāl-sĭf’ə-rôl’, -rōl’) n. a metabolite of vitamin d3 that is produced primarily in the liver and is the circulating form of vitamin d in the body. it promotes intestinal absorption of calcium and is used in the treatment of rickets.
- 25th amendment
noun an amendment to the u.s. const-tution, ratified in 1967, establishing the succession to the presidency in the event of the president’s death, resignation, or incapacity.
- 26th amendment
noun an amendment to the u.s. const-tution, ratified in 1971, lowering the voting age to 18.
binary synchronous transmission