for·mic ac·id
noun/ˌfɔːmɪk ˈæsɪd/
/ˌfɔːrmɪk ˈæsɪd/
[uncountable] (chemistry)- an acid made from carbon monoxide and steam (= gas produced when water boils). It is also present in a liquid produced by some ants.
甲酸；蚁酸 Word Originlate 18th cent.: formic from Latin formica ‘ant’.