| periodic |
recurring at regular intervals recurring or reappearing from time to time; "periodic feelings of anxiety"
출처: wordnet.princeton.edu/perl/webwn
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| peritoneal cavity |
the interior of the peritoneum; a potential space between layers of the peritoneum
출처: wordnet.princeton.edu/perl/webwn
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| periodic breathing |
abnormal respiration in which periods of shallow and deep breathing alternate
출처: wordnet.princeton.edu/perl/webwn
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| periodic law |
(chemistry) the principle that chemical properties of the elements are periodic functions of their atomic numbers
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| periodic table |
a tabular arrangement of the chemical elements according to atomic number as based on the periodic law
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