音标：[.mɒnәu'beisik] ；

a. 一元的
[化] 一价的; 一碱价的; 一元的; 一取代的

a. Capable of being neutralized by a univalent base or
basic radical; having but one acid hydrogen atom to be replaced; --
said of acids; as, acetic, nitric, and hydrochloric acids are
monobasic.

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