| 单词 | propionic acid | 
| 释义 | Word Frequency propionic acidformer name for propanoic acid Word Frequency propionic acid(ˌprəʊpɪˈɒnɪk) noun   the former name for propanoic acid   Word origin C19: from Greek pro- first + pionic from piōn fat, because it is first in order of the fatty acids | 
	
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