出典:Wiktionary
出典:『Wiktionary』 (2026/05/07 01:12 UTC 版)
Inherited from 中期英語 soot, soote, sote, sot, from 古期英語 sōt, from Proto-Germanic *sōtą (“soot”), from Proto-Indo-European *sed- (“to sit”). Cognate with dated Dutch zoet (“soot”), German Low German Soot (“soot”), Danish sod (“soot”), Swedish sot (“soot”), Icelandic sót (“soot”). Compare similar ō-grade formation the same Proto-Indo-European root in Old Irish suide (“soot”) and Balto-Slavic: Lithuanian súodžiai (“soot”), and Proto-Slavic *saďa (“soot”) (Russian са́жа (sáža), Polish and Slovak sadza, Bulgarian са́жда (sážda)).
soot (usually uncountable, plural soots)
soot (third-person singular simple present soots, present participle sooting, simple past and past participle sooted)
Inherited from 古期英語 sōt, from Proto-West Germanic *sōt, from Proto-Germanic *sōtą.
出典:Wikipedia
出典:『Wikipedia』 (2011/06/13 05:49 UTC 版)
Soot (pronounced /ˈsʊt/) is a general term that refers to impure carbon particles resulting from the incomplete combustion of a hydrocarbon. It is more properly restricted to the product of the gas-phase combustion process but is commonly extended to include the residual pyrolyzed fuel particles such as cenospheres, charred wood, petroleum coke, etc. that may become airborne during pyrolysis and which are more properly identified as cokes or chars. The gas-phase soots contain polycyclic aromatic hydrocarbons (PAHs). The PAHs in soot are known mutagens and are classified as a "known human carcinogen" by the International Agency for Research on Cancer (IARC).
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a wrinkle
a paste-pot
a syphilitic (patient)