Definition of molly noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈmɒli//
; NAmE NAmE//ˈmɑːli//
(pl. mollies) Fish
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a small fish that is often put into aquariums See related entries: Fish Word Origin1930s: from modern Latin Mollienisia (former genus name), from the name of Count Mollien (1758–1850), French statesman.
See the Oxford Advanced American Dictionary entry: molly