hydrogenic

adjective (1)
hy·​dro·​gen·​ic

Definition of hydrogenic

 (Entry 1 of 2)

1 : formed by the agency of water dinosaur footprints in hydrogenic rock
2 : developed under the dominant influence of water (as in a cold humid region) hydrogenic soil

hydrogenic

adjective (2)
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Definition of hydrogenic (Entry 2 of 2)

: resembling hydrogen in nuclear composition

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History and Etymology for hydrogenic

Adjective (1)

hydr- + -genic

Adjective (2)

International Scientific Vocabulary hydrogen + -ic

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