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kerseymere
kerygma
kesh
kestrel
ket-
ketamine
ketch
ketchup
ketene
keto-
keto form
ketogenesis
ketone
ketone body
ketone group
ketonuria
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kerogen
ker·o·gen [ kérrəjən ]


noun 
Definition:
 
oil-producing material in rocks: a fossilized insoluble organic material found in some sedimentary rocks such as oil shales, yielding petroleum products when heated
[Early 20th century. < Greek kēros "wax"]
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