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Reverse Search
Reverse Search allows you to search within the full text of dictionary entries for words, word parts, and phrases.
Search for entries that contain:
Exact matches of any of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" or the word "orange."
Any form of any of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" or "apples" or "orange" or "oranges."
Exact matches of all of the individual words entered in the search box.
Example: Searching for "apple orange" identifies all entries that contain the word "apple" and the word "orange."
The exact sequence of words and/or characters entered in the search box (for example, a fragment of a word, a single word, multiple words, or even a phrase containing punctuation)
Example: Searching for "a variety of apple" identifies all entries that contain that phrase. Searching for "app" identifies all entries that contain the letters "app," such as occurrences of "apple," "application," and "apply."
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| impermeable |
not permitting passage or penetration. |
| impervious |
not allowing penetration or passage. [1/3 definitions] |
| permeability |
the quality or condition of permitting penetration or diffusion, as by a gas or liquid. |
| proof |
resistant to penetration or damage; impenetrable; impervious. [2/13 definitions] |
| radiopaque |
of a substance, resistant to penetration by radiation such as x-rays or gamma rays. |
| twilight zone |
the depth in water of light's deepest penetration. [1/3 definitions] |
| water-repellent |
resisting penetration by water, but not entirely waterproof. |
| water-resistant |
resisting penetration by water, but not entirely waterproof. |
| wound1 |
an injury to living tissue, usu. involving penetration or cutting of the external surface. [1/4 definitions] |
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