molly

1
[ mol-ee ]
/ ˈmɒl i /

noun, plural mol·lies.

any of certain livebearing freshwater fishes of the genus Mollienisia, popular in home aquariums.

Origin of molly

1
shortened from New Latin Mollienisia, irregular named after Count F.N. Mollien (1758–1850); see -ia

Definition for molly (2 of 3)

molly

2
[ mol-ee ]
/ ˈmɒl i /

noun, plural mol·lies.

a type of expansion bolt having a split, sleevelike sheath threaded at one end so that when inserted snugly into masonry the turning of the bolt draws the ends of the sheath together, thus spreading the sides.

Origin of molly

2
First recorded in 1955–60; formerly a trademark

Definition for molly (3 of 3)

Molly

[ mol-ee ]
/ ˈmɒl i /

noun

a female given name, form of Mary or Milicent.
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British Dictionary definitions for molly (1 of 2)

molly

1
/ (ˈmɒlɪ) /

noun plural -lies

any brightly coloured tropical or subtropical American freshwater cyprinodont fish of the genus Mollienisia

Word Origin for molly

C19: from New Latin Mollienisia, from Comte F. N. Mollien (1758–1850), French statesman

British Dictionary definitions for molly (2 of 2)

molly

2
/ (ˈmɒlɪ) /

noun plural -lies

Irish informal an effeminate, weak, or cowardly boy or man

Word Origin for molly

C18: perhaps from Molly, pet name for Mary
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012