Definitions
carboxyl radical (chemistry)
Etymology
About
The character "羧" is a modern chemical ideogram created specifically to represent the carboxyl group, constructed as a phonosemantic compound with the radical "羊" loosely categorizing it among organic compounds and the component "夋" providing its phonetic value. Its etymology stems from the late 19th or early 20th century need for precise terminology in translating Western chemical concepts into Chinese, likely modeled after the similar-sounding character "酸" (acid) while differentiating meaning through the altered semantic element. The character's structure and dedicated meaning have remained fixed to this chemical context since its inception.