Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A band in bituminous coal, characterized by a sheetlike irregular fracture, a silky luster, and fine intercalations of durain.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A form of
coal havingstratifications parallel to thebedding plane
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[Latin clārus, bright; see kelə- in Indo-European roots + (fus)ain.]
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