齦 yín gums Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 由于感染严重，他的牙龈溃了一大块。 yóuyú gǎnrǎn yánzhòng, tā de yáyín kuì le yī dà kuài. Due to a severe infection, a large area of his gums ulcerated. Source: Dong Chinese Dictionary