The transposition of letters or sounds in a word, as bird for older brid.

【文法】字母易位；字音转换(如 brid 转为 bird)。

The artificial change of position of a diseased substance in the body.

【医】病变移植；病变移位法。

An interchange of atoms between two molecules.

【化】置换(在两个分子中原子的对换)。