Addition of a letter or syllable to a word, esp. by prefixing.

添头字；添头音(如在 loved 前面加 be，而成 beloved)。

Replacement of an absent p[art of the body by an artificial one.

【医】捕换术(以假牙、义眼、义肢等补换残缺部分)。

The artificial part.

捕换之假牙、义眼、义肢等。