Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Old French
Origin: Latin defectus 'lack', from defectus, past participle of deficere 'to go away from, fail, lack'

defect

1 noun
     
de‧fect1 [countable]
a fault or a lack of something that means that something or someone is not perfect:
All the cars are tested for defects before they leave the factory.
a genetic defect
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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