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Dictionary


room-and-pil•lar



Pronunciation: (rOOm'un-pil'ur, room'-), [key]
adj. Mining.
noting a means of extracting coal or other minerals from underground deposits by first cutting out rooms, then robbing the pillars between them; pillar-and-breast. Cf. longwall.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

room and boardroom clerk

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