protective barrier
📖 Definitions
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A physical structure or material designed to prevent harm, damage, or unauthorized access to what lies behind it.; A natural biological layer or system that shields the body from external threats like pathogens or toxins.; A mental or emotional defense mechanism used to shield oneself from vulnerability, stress, or emotional pain.
💬 Examples
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Construction workers erected a protective barrier around the excavation site.
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Mucus serves as a protective barrier in the respiratory system.
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She relied on her career achievements as a protective barrier against feelings of inadequacy.