There are 2 definitions of defect in English:

defect1

Line breaks: de¦fect

noun

Pronunciation: /ˈdiːfɛkt
 
, dɪˈfɛkt
 
/
A shortcoming, imperfection, or lack: genetic defects [mass noun]: the property is free from defect
More example sentences
  • At the same time, our mind has the potential to become completely free of defects and limitations.
  • Many suffer needlessly from eye defects due top lack of knowledge and basic equipment.
  • These toxins can damage immune systems, trigger cancers and cause genetic defects.
Synonyms
fault, flaw, imperfection, deficiency, weakness, weak spot/point, inadequacy, shortcoming, limitation, failing, obstruction; snag, kink, deformity, blemish, taint, crack, break, tear, split, scratch, chip, fracture, spot; mistake, error; Computingbug, virus
informal glitch, gremlin

Origin

late Middle English (as a noun, influenced by Old French defect 'deficiency'): from Latin defectus, past participle of deficere 'desert or fail', from de- (expressing reversal) + facere 'do'.

Definition of defect in:

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Word of the day brannigan
Pronunciation: ˈbranigən
noun
a brawl or violent argument

There are 2 definitions of defect in English:

defect2

Line breaks: de¦fect
Pronunciation: /dɪˈfɛkt
 
/

verb

[no object]
Abandon one’s country or cause in favour of an opposing one: he defected to the Soviet Union after the war
More example sentences
  • Managers for the candidates raced around the floor trying to pry delegates away from their opponents, and to keep those already on their side from defecting.
  • Alibekov defected to the United States in 1992, changed his name, and made the talk-show circuit.
  • He was one of about ten people who defected in that direction.
Synonyms
desert, go over to the enemy, change sides/loyalties/allegiances, turn traitor, rebel, renege, abscond, go AWOL, quit, escape; shift ground, break faith, be apostate, apostatize; abandon, renounce, repudiate, secede from, revolt against
informal rat on
archaic forsake

Origin

late 16th century: from Latin defect- 'failed', from the verb deficere (see defect1).

Derivatives

defector

noun
More example sentences
  • It had been almost impossible to locate two prisoners, much less two defectors.
  • The CIA freed Nosenko in 1967, finally concluding he was a bona fide defector after all.
  • If one prisoner grasses on the other, the other will face the full sentence and the defector will go free.
Synonyms

Definition of defect in: