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English definition of “self-preservation”

self-preservation

noun [U]     /ˌselfˌprez.əˈveɪ.ʃən/ US  /-ɚ-/
behaviour based on the characteristics or feelings that warn people or animals to protect themselves from difficulties or dangers: It was his instinct for self-preservation that led him to abandon his former friends and transfer his allegiance to the new rulers.Protection and protectorsEnvironmental issues
(Definition of self-preservation noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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