Mandarin:
鎓盐 (líng yán)

Explanation in English Language (EN):
Onium salts are ionic compounds containing a positively charged ion (cation) in which the central atom has a valence (number of bonds it can form) higher than its typical valency in the periodic table. This central atom carries a positive charge and is bonded to several other atoms or groups. Onium salts are used in various applications, including as phase transfer catalysts, electrolytes, and initiators in polymerization reactions. Examples of onium salts include ammonium salts, phosphonium salts, and sulfonium salts.

Explanation in Mandarin (ZH):
鎓盐是含有带正电的离子（阳离子）的离子化合物，其中中心原子的化合价（它可以形成的键数）高于其在元素周期表中的典型化合价。该中心原子带正电荷，并与其他几个原子或基团键合。鎓盐用于各种应用，包括作为相转移催化剂、电解质和聚合反应中的引发剂。鎓盐的例子包括铵盐、鏻盐和锍盐。

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International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
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