出典:Wiktionary
出典:『Wiktionary』 (2026/06/07 17:53 UTC 版)
From Latin sūctiō, sūctiōnem (whence -ion), attested since Late Latin and derived from sūctus, past participle of sūgō (“to suck”). Attested in English since the early 17th century.
suction (usually uncountable, plural suctions)
suction (third-person singular simple present suctions, present participle suctioning, simple past and past participle suctioned)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/25 15:13 UTC 版)
Suction is the flow of a fluid into a partial vacuum, or region of low pressure. The pressure gradient between this region and the ambient pressure will propel matter toward the low pressure area. Suction is popularly thought of as an attractive effect, which is incorrect since vacuums do not innately attract matter. Dust being "sucked" into a vacuum cleaner is actually being pushed in by the higher pressure air on the outside of the cleaner.
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腫れぼったいこと
せき込み
a syphilitic (patient)
a wrinkle
a paste-pot
a plaything with which one trifles for pleasure
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