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Pronunciation of 

optical

view main entry for opticaladjective biology  /ˈɑptɪk(ə)l/
American English pronunciation: opticalClick to listen to the pronunciation of optical

derived word

optically

  /ˈɑptɪkli/  adverb
American English pronunciation: opticallyClick to listen to the pronunciation of optically

pre-cation

a paid holiday given to a new employee before they start their job

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selfie stick

an expandable stick which you attach to a mobile phone or camera to help you take a selfie …

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