Definitions for kerogenˈkɛr ə dʒən, -ˌdʒɛn
Random House Webster's College Dictionary
ker•o•genˈkɛr ə dʒən, -ˌdʒɛn(n.)
the bituminous matter in oil shale from which shale oil is obtained by heating and distillation.
Origin of kerogen:
1905–10; < Gk kēró(s) wax + -gen
any organic matter present in a sedimentary rock that is insoluble in organic solvents; the precursor of oil and natural gas