| sildenafil citrate |
sildenafil: virility drug (trade name Viagra) used to treat erectile dysfunction in men
출처: wordnet.princeton.edu/perl/webwn
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| silencer |
short tube attached to the muzzle of a gun that deadens the sound of firing a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
출처: wordnet.princeton.edu/perl/webwn
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| silent |
marked by absence of sound; "a silent house"; "soundless footsteps on the grass"; "the night was still" mum: failing to speak or communicate etc when expected to; "the witness remained silent" implied: indicated by necessary connotation though not expressed directly; "gave silent consent"; "a tacit agreement"; "the understood provisos of a custody agreement" not made to sound; "the silent `h' at the beginning of `honor'"; "in French certain letters are often unsounded" having a frequency below or above the range of human audibility; "a silent dog whistle" dumb: unable to speak because of hereditary deafness
출처: wordnet.princeton.edu/perl/webwn
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| silica |
a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite
출처: wordnet.princeton.edu/perl/webwn
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| silicate |
a salt or ester derived from silicic acid
출처: wordnet.princeton.edu/perl/webwn
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