癭えい瘤りゅう

noun

cecidium; plant gall

Botanical term for an abnormal growth on a plant caused by insects, mites, or fungi. The common synonym 虫こぶ is more widely used in everyday contexts.

See also: 虫こぶ

• この木きの葉はにはえいりゅうがいくつも見みられる。