| 释义 |
noun Chemistry.the radioactive isotope of barium having a mass number of 140 and a half-life of 12.8 days, used chiefly as a tracer. Words nearby barium 140barit., barite, baritone, baritone clef, barium, barium 140, barium bromate, barium carbonate, barium chloride, barium chromate, barium enema Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |