coal seam
noun
Definition of coal seam
: a bed of coal usually thick enough to be profitably mined
From the M-W Editors
1811
First Known Use of coal seam
1811
Learn More about coal seam
-
See words that rhyme with coal seam Britannica.com: Encyclopedia article about coal seam
Seen and Heard
What made you want to look up coal seam? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!