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Definition of: impenetrability

(im·pen′ə·trə·bilə·tē) noun
1. The quality of being impenetrable.
2. Physics The property of matter which prevents two bodies from occupying the same space at the same time. Also im·pen′e·tra·ble·ness.

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Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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