defence mechanism
Britishnoun
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psychoanal a usually unconscious mental process designed to reduce the anxiety, shame, etc, associated with instinctive desires
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physiol the protective response of the body against disease organisms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They found Madagascar "hissing" cockroaches, a bulky insect named for its noisy defence mechanism, and dubia cockroaches, an invasive critter bred as a snack for pet lizards.
From Barron's ● Jun. 5, 2026
The "highly distinctive, prominent horns" are only on the female bee and may be used as a defence mechanism, to gather pollen or nectar, or to collect materials such as resin for nests.
From BBC ● Nov. 10, 2025
Strikingly, these moths lack hearing organs and are therefore not aware of their unique defence mechanism, nor do they have the capability to control it using muscular action.
From Science Daily ● Feb. 5, 2024
"In the face of what the entire planet is facing, especially the Mediterranean which is a climate change hot-spot, there is no magical defence mechanism."
From Reuters ● Jul. 25, 2023
The Fire Crab does, however, have its own defence mechanism: it shoots flames from its rear end when attacked.
From "Fantastic Beasts and Where to Find Them" by J.K. Rowling
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