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| a gadget; dingus; thingumbob. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
ventricle (věn'trĭ-kəl) Pronunciation Key
ventricular adjective (věn-trĭk'yə-lər) |
The two lower chambers of the heart, which receive blood from the atria and pump it into the arteries. (See circulatory system.)