单词	protuberance
释义	protuberancepro‧tu‧be‧rance /prəˈtjuːbərənt $ -ˈtuː-/ noun [countable] Word Origin WORD ORIGINprotuberance Origin: 1600-1700 protuberant, from Latin, present participle of protuberare, from tuber ‘swelling’ Examples EXAMPLES FROM THE CORPUS Accurate recordings of nebulae, comets and solar protuberances now extended the iconography of the natural world. And the amount the tip is moved reveals the height of the protuberance, even if it is only a single atom high. At the front, inside the thick cotton shirt, was the flat protuberance of the packet. Each small protuberance seems to be attached to a larger one at some minute place, producing many warts upon warts. Her sculptures are hybrids of organic and machine forms: cylinders punctuated with round apertures and protuberances. Perhaps they fitted together with the protuberances of one party fitting into the hollows of the other to make a perfect whole. formal something that sticks out:  This dinosaur is recognizable by the protuberance on the top of its head.—protuberant adjective
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