coal shale
noun
Shale which occurs adjacent to deposits of coal, often containing fossils.
Origin
Late 18th century.
- polyptote
- polyptoton
- polyptych
- polypus
- polypyrenous
- polypyrrole
- polyreaction
- polyresin
- polyrhythm
- polyrhythmic
- polyrhythmical
- polyrhythmically
- polyribonucleotide
- polyribosome
- polyrod
- polysaccharide
- polysaccharose
- polysaprobic
- polysarcia
- polysarcous
- polysaturated
- polyschematic
- polyschematist
- polyscope
- polysemant