名詞 ketone:

1. any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals

ke.tone

n.（名詞）
Any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals and having the general formula R(CO)R., where R may be the same as R..
甲酮：有機(jī)化合物的一類，在每?jī)蓚€(gè)烴原子團(tuán)中有一組羰基與一個(gè)碳原子相連，通常分子式為R(CO)R`，其中R和R`可能相同

來(lái)源：
German Keton
德語(yǔ) Keton
short for Aketon [acetone]
Aketon的簡(jiǎn)寫 [丙酮]
Latin acôtum [vinegar] * see acetum
拉丁語(yǔ) acôtum [醋] *參見(jiàn) acetum
-on [n. suff.] alteration of -en from Greek -ônô
-on [名詞后綴] -en的變化 源自 希臘語(yǔ) -ônô

【引伸】
keton.ic