| free association |
a thought process in which ideas (words or images) suggest other ideas in a sequence
출처: wordnet.princeton.edu/perl/webwn
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| frostbite |
destruction of tissue by freezing and characterized by tingling, blistering and possibly gangrene
출처: wordnet.princeton.edu/perl/webwn
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| frottage |
masturbation by rubbing against another person (as in a crowd)
출처: wordnet.princeton.edu/perl/webwn
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| free radical |
an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule than has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; "in the body free radicals are high-energy particles that ricochet wildly and damage cells"
출처: wordnet.princeton.edu/perl/webwn
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| freeze-drying |
a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes
출처: wordnet.princeton.edu/perl/webwn
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