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90s Slang You Should Know

massless

[mas-lis] /ˈmæs lɪs/
adjective, Physics.
1.
pertaining to an elementary particle having zero rest mass, as a photon.
Origin of massless
1875-1880
First recorded in 1875-80; mass + -less
Related forms
masslessness, noun
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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Word Value for massless

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