kerogen

/ker-uh-juhn, -jen/US // ˈkɛr ə dʒən, -ˌdʒɛn //UK // (ˈkɛrədʒən) //

角质层,角质素,角质部,角岩

Definitions

n.名词 noun

1
- : the bituminous matter in oil shale, from which shale oil is obtained by heating and distillation.