defense mechanism
US /dɪˈfens ˌmek.ə.nɪ.zəm/
UK /dɪˈfens ˌmek.ə.nɪ.zəm/

1.
mecanismo de defensa
an unconscious means of protecting oneself from anxiety, guilt, or other unacceptable feelings or thoughts
:
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Humor can be a powerful defense mechanism against stress.
El humor puede ser un poderoso mecanismo de defensa contra el estrés.
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He developed a cynical attitude as a defense mechanism.
Desarrolló una actitud cínica como mecanismo de defensa.
2.
mecanismo de defensa
a physical or behavioral feature of an animal that helps it to protect itself from predators
:
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The chameleon's camouflage is a remarkable defense mechanism.
El camuflaje del camaleón es un notable mecanismo de defensa.
•
The skunk's spray is an effective defense mechanism against threats.
El rocío de la mofeta es un eficaz mecanismo de defensa contra las amenazas.