| ̷ ̷ ̷ ̷|pelik adjective
Etymology: International Scientific Vocabulary sapropel + -ic
1. : living in mud or ooze composed chiefly of decaying organic matter (as various freshwater protozoa)
2. : of, relating to, or derived from sapropel
the organic carbon may be humic (coaly) or sapropelic (bituminous) — F.J.Pettijohn