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polybasic

A มี สอง อะตอม ไฮโดรเจน หรือ มากกว่า สอง อะตอม ที่ แทนที่ ได้ 

 

Webster's 1913 Dictionary

POLYBASIC

Pol `y *ba "sic, a. Etym: [Poly- + basic. ] (Chem. )

 

Defn: Capable of neutralizing, or of combining with, several molecules of a monacid base; having several hydrogen atoms capable of being replaced by basic radicals; -- said of certain acids; as, sulphuric acid is polybasic.