1. Verb
To utter a low, murmuring, continued sound, as a cat does when pleased.
2. Verb
To signify or express by purring.
3. Noun
The low, murmuring sound made by a cat to express contentment or pleasure.
4. Noun
any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber
Vocabulary classified under Chemistry
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