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English definition of “defect”

defect

noun [C]     /ˈdiː.fekt/
C1 a fault or problem in something or someone that spoils them or causes them not to work correctly: All R45 aircraft have been grounded, after a defect in the engine cooling system was discovered. There are so many defects in our education system. It's a character defect in her that she can't ever accept that she's in the wrong.Faults and mistakes a physical condition in which something is wrong with a part of someone's body: She suffers from a heart/sight/speech defect. The drug has been shown to cause birth defects. Cystic fibrosis is caused by a genetic defect.Physical irregularities
(Definition of defect noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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