| 单词 | vacuole |
| 释义 | vacuole (once / 61559 pages) n A cell is a tiny world of elements, one of which is the vacuole. Found in both plant and animal cells, a vacuole is a fluid-filled pocket in the cell's cytoplasm that serves varying functions depending on the cell's requirements. Look at the word vacuole. Reminds you of "vacuum," doesn't it? That's because both words comes from the Latin word vacuus, which means "empty." In fact, vacuole comes from the French word that means "little vacuum." However, whereas a "vacuum" refers to an empty space, the vacuole usually contains a watery fluid. It is a space in the cell that has no specific purpose, but usually functions as a storage bin for everything from water and food to waste products. WORD FAMILYvacuole: vacuolation, vacuoles, vacuolisation, vacuolization USAGE EXAMPLESThe vacuole’s function is to hold cellular waste. New York Times(Oct 26, 2015) Finally, at :51 you see a special star-burst shaped organelle called the contractile vacuole in action. Scientific American(May 08, 2014) In healthy petunias, a previously undiscovered “cellular pump” delivers high quantities of acid to special compartments in plant cells known as vacuoles, the researchers said. New York Times(Jan 13, 2014) n a tiny cavity filled with fluid in the cytoplasm of a cell Hyper bodily cavity, cavity, cavum (anatomy) a natural hollow or sinus within the body |
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