medium-volatile bituminous coal

medium-volatile bituminous coal

[′mē·dē·əm ¦väl·ə·təl bə′tü·mə·nəs ′kōl]
(geology)
Bituminous coal consisting of 23-31% volatile matter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.