Impenetrability :: Impenetrability (n.) That property in virtue of which two portions of matter can not at the same time occupy the same portion of space.
Impenetrability :: Impenetrability (n.) Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness.
Impenetrable :: Impenetrable (a.) Incapable of being penetrated or pierced; not admitting the passage of other bodies; not to be entered; impervious; as, an impenetrable shield..
Impenetrable :: Impenetrable (a.) Having the property of preventing any other substance from occupying the same space at the same time.
Impenetrable :: Impenetrable (a.) Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart..
Impenetrableness :: Impenetrableness (n.) The quality of being impenetrable; impenetrability.
Impenetrably :: Impenetrably (adv.) In an impenetrable manner or state; imperviously.
Interpenetrate :: Interpenetrate (v. t.) To penetrate between or within; to penetrate mutually.
Interpenetrate :: Interpenetrate (v. i.) To penetrate each the other; to penetrate between bodies or their parts.
Interpenetration :: Interpenetration (n.) The act of penetrating between or within other substances; mutual penetration.
Interpenetrative :: Interpenetrative (a.) Penetrating among or between other substances; penetrating each the other; mutually penetrative.
Penetrancy :: Penetrancy (n.) The quality or state of being penetrant; power of entering or piercing; penetrating power of quality; as, the penetrancy of subtile effluvia..
Penetrant :: Penetrant (a.) Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold..
Penetrate :: Penetrate (v. t.) To enter into; to make way into the interior of; to effect an entrance into; to pierce; as, light penetrates darkness..