| IMPENETRABILITY | • impenetrability n. The characteristic of being impenetrable; invulnerability. • IMPENETRABILITY n. the inability of two portions of matter to occupy the same space at the same time. |
| IMPENETRABLE | • impenetrable adj. Not penetrable. • impenetrable adj. (Figuratively) Incomprehensible; fathomless; inscrutable. • impenetrable adj. Opaque; obscure; not translucent or transparent. |
| IMPENETRABLY | • impenetrably adv. In an impenetrable manner or state; imperviously. • IMPENETRABLE adv. incapable of being penetrated or pierced. |
| INTERPENETRABLE | • interpenetrable adj. That can be interpenetrated. • INTERPENETRABLE adj. able to be interpenetrated. |
| PENETRABILITIES | • penetrabilities n. Plural of penetrability. • PENETRABILITY n. the state of being penetrable. |
| PENETRABILITY | • penetrability n. The extent to which something is penetrable. • PENETRABILITY n. the state of being penetrable. |
| PENETRABLE | • penetrable adj. Capable of being penetrated, entered, or pierced. Also figuratively. • PENETRABLE adj. that can be penetrated. |
| PENETRABLENESS | • penetrableness n. The quality of being penetrable. • PENETRABLE n. that can be penetrated. |
| PENETRABLY | • penetrably adv. In a penetrable way. • PENETRABLE adv. that can be penetrated. |
| PERPETRABLE | • perpetrable adj. Capable of being perpetrated. • PERPETRABLE adj. that can be perpetrated. |
| TETRABASIC | • tetrabasic adj. (Chemistry, of an acid) containing four replaceable hydrogen atoms. • tetrabasic adj. (Chemistry, of a salt) having four atoms of a univalent metal. • TETRABASIC adj. of acids, having four replaceable hydrogen atoms. |
| TETRABASICITIES | • TETRABASICITY n. the state of being tetrabasic. |
| TETRABASICITY | • tetrabasicity n. The quality of being tetrabasic. • TETRABASICITY n. the state of being tetrabasic. |
| TETRABORATE | • tetraborate n. (Chemistry) Any borate having four boron atoms. • TETRABORATE n. a salt, ester, or anion of boric acid. |
| TETRABORATES | • tetraborates n. Plural of tetraborate. • TETRABORATE n. a salt, ester, or anion of boric acid. |
| TETRABRACH | • TETRABRACH n. in classical prosody, a word or metrical foot composed of four short syllables. |
| TETRABRACHS | • TETRABRACH n. in classical prosody, a word or metrical foot composed of four short syllables. |
| TETRABRANCHIATE | • tetrabranchiate adj. (Zoology) Of or relating to the Tetrabranchiata; having four gills. • tetrabranchiate n. (Zoology) Any of the Tetrabranchiata. • TETRABRANCHIATE n. any mollusc belonging to the Tetrabranchia, with four gills. |