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defect

Word family 
de·fect1 /dɪˈfekt, ˈdiːfekt/ ●●○ noun [countableC]  
FAULT/something WRONGa fault or a lack of something that means that something or someone is not perfect 缺点，缺陷，毛病
 All the cars are tested for defects before they leave the factory.
所有汽车在出厂前都经过品质检验。
 a genetic defect
遗传缺陷
► see thesaurus at fault
n COLLOCATIONS
ADJECTIVES/NOUN + defect
a serious defect
The movie has a few serious defects.
a major defect (=very serious)
They have found a major defect in the program.
a slight/minor defect
There are one or two minor defects on the car’s paintwork.
a physical defect
Doctors examined the baby and could find no physical defects.
a structural defect
Older buildings are bound to have some structural defects.
a genetic/inherited defect (=one that is passed to you in your genes)
The condition is caused by a genetic defect.
a birth defect (=one that you are born with)
About 11% of children have birth defects.
a heart defect
Laura was born with a rare heart defect.
a speech defect (=an incorrect way of saying certain sounds)
He had a speech defect which made it quite difficult to understand him.
a character defect (=a fault in your character)
Laziness was just one of his character defects.
verbs
have a defect
The old system had some serious defects.
correct a defect
She had surgery to correct a defect in her right eye.
Examples from the Corpus
defect• Investigators found a defect in the design of the ship.• Little analysis was apparent in many of the early Programmes - a defect that was never entirely overcome.• A defect in the braking system caused several accidents before the car was recalled.• Children were considered ineligible to be controls if they were a twin, were adopted, or had a serious congenital defect.• By emphasizing every defect in her body, she offers a challenge to polite culture.• Because methodology is fully exposed, genuine defects may be revealed, or more frustratingly, discussion sidetracked away from implications.• His personal defects are a somewhat hostile reserve, conceit, and a narrow outlook...• People are born with these defects but often show no outward signs of problems.• These defects are readily apparent in this case.• Are you puzzled by the fact that Congress does little to remedy those defects in the bureaucracy against which it constantly rails?
Related topics: Citizenship
defect2 /dɪˈfekt/ verb [intransitiveI]  
PGCto leave your own country or group in order to go to or join an opposing one 背叛，叛逃，投敌，变节
defect to/from
 a Russian actor who defected to the West
一名叛逃到西方国家的俄罗斯演员
—defector noun [countableC]
—defection /dɪˈfekʃən/ noun [countableC, uncountableU]
Examples from the Corpus
defect• Temptation to defect, 5 points.• At least one count in this region, Odulf, had already defected.• They were paying him for defecting, for answering questions about his military service.• Home Secretary Jack Straw's record would be reason enough to defect from Labour.• Two Conservatives have recently defected from the party, whose majority has dwindled to five in Parliament.• Almost every Republican woman I know also defected in both elections.• Who had persuaded the other to defect, to betray his fundamental principles in the name of personal loyalty?• If I am to live, I must defect with my aircraft.
defect to/from• Not until the years of fast industrialization and construction were these defects to be remedied.• Companies learn about defects from consumer complaints, liability lawsuits and their own testing.• Our employees defected to Drexel at an alarming rate.• He defects to the Soviet Union.• The Confederates considered the large numbers of blacks who defected to the Union to fight against their former masters as criminals.
From Longman Business Dictionary
defectde·fect1 /dɪˈfekt, ˈdiːfekt/ noun [countableC]
MANUFACTURINGa fault in something that means it is not perfect
They recalled the vehicles because of brake defects.
an effort to improve customer satisfaction and reduce product defects
a possible safety defect with the plane’s autopilot
→ latent defect → zero defects
defectde·fect2 /dɪˈfekt/ verb [intransitiveI] journalism
1if the buyer of one product defects to another product, they stop buying the first one and start buying the second one
They tried to retain customers who might defect to a credit card with a lower interest rate.
2if an employee working for a particular company defects, they leave it and start working for another
Although several senior employees have defected, it’s not true that there’s any kind of mass walkout.
—defector noun [countableC]
When a group of his partners announced they were leaving, the firm prevented the defectors from entering their offices.
—defection noun [countableC, uncountableU]
The big investment bank has been hit by client defections.
Origin defect1
(1400-1500) Old French Latin defectus “lack”, from defectus, past participle of deficere “to go away from, fail, lack”
 defect2
(1500-1600) Latin defectus, past participle; → DEFECT1
de·fect1 noun →n COLLOCATIONS1defect2 verb
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