mo·las·ses
noun/məˈlæsɪz/
/məˈlæsɪz/
[uncountable]- a thick black sweet sticky liquid produced when sugar is refined (= made pure)
（制糖时产生的）糖浆，糖蜜 - (North American English) (British English treacle)this thick black sticky liquid when it is used in cooking
（制糖时产生的）糖浆，糖蜜
Word Originmid 16th cent.: from Portuguese melaço, from late Latin mellacium ‘must’, based on mel ‘honey’.