anthraxolite
(obsolete) Alternative form of turm
Incapable of being illuminated or made light or bright; unable to affix with a light. / Incapable of catching fire or being ignited.
A carbonaceous substance resembling anthracite.
(organic chemistry) Any of a group of diterpenoids sometimes present in tobacco
地質学者は古代の海底堆積層で、無煙炭に似た炭素質の鉱脈を確認した。
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