something that bulges out or is protuberant or projects from its surroundings;
"the gun in his pocket made an obvious bulge"
"the hump of a camel"
"he stood on the rocky prominence"
"the occipital protuberance was well developed"
"the bony excrescence between its horns"
the increase in volume of certain substances when they are heated (often accompanied by release of water)
swelling的用法和样例：
例句
用作名词 (n.)
The swelling has gone down a little. 肿块已小了一些。
He probed the swelling anxiously with his finger. 他很担心地用手指触摸肿处。
The swelling on her finger was caused by a foreign body in it. 她的手指肿胀是手指内有异物引起的。
No pleasing drama in subtle averted eyes,the swelling fermata as the chord dies. 微妙交错的眼神不是一出愉快的喜剧，在无尽膨胀的延长音里，两人的合唱已死去。
The swelling or shrinkage with changes in moisture content is known as movement. 木材随含水量变化发生膨胀或收缩，这种现象称为胀缩。
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