noun
mollie
MO-lih
noun
1
Any of several small freshwater fish of the genus Poecilia, popular in home aquariums; more commonly spelled "molly."
"She added three mollies to the tank alongside the guppies."
How to Use Mollie
Learner’s notesIn plain EnglishA common small aquarium fish, usually spelled "molly."
Easily confused with
Word Forms
mollies plural
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Etymology
A diminutive form, ultimately linked to the genus name Mollienesia, once used for these fish.