Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Latin
Origin: plasticus 'of shaping', from Greek plastikos, from plassein 'to shape, form, plaster'

plastic

2 adjective
     
Related topics: Material, Textiles
plastic2
1TIM made of plastic:
a plastic spoon
plastic bags
2 technical a plastic substance can be formed into many different shapes and keeps the shape it is formed into until someone changes it
3 something that is plastic looks or tastes artificial or not natural:
plastic food
I hate that plastic smile of hers.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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