单词 | ballasts |
释义 | ballast1 of 2noun bal·last ˈba-ləst 1 : a heavy substance (such as rocks or water) placed in such a way as to improve stability and control (as of the draft of a ship or the buoyancy of a balloon or submarine) tossed several tons of ballast overboard 2 : something that gives stability (as in character or conduct) She provided the ballast we needed during stressful times. 3 : gravel or broken stone laid in a railroad bed or used in making concrete 4 : a device used to provide the starting voltage or to stabilize the current in a circuit (as of a fluorescent lamp) ballast 2 of 2verb ballasted; ballasting; ballasts transitive verb 1 : to steady or equip with or as if with ballast They ballast the canoe with large rocks. 2 : to fill in (something, such as a railroad bed) with ballast (see ballast entry 1 sense 3) ballasts nounas in cargoes heavy material (such as rocks or water) that is put on a ship to make it steady or on a balloon to control its height in the air —often used figuratively A large amount of ballast kept the boat from capsizing. She provided the ballast the family needed in times of stress. Synonyms & Similar Words Relevance
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