• Webster's Revised Unabridged Dictionary
    • n Moellon Rubble masonry.
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Century Dictionary and Cyclopedia
    • n moellon Rubble-stone, sometimes used in architecture, set in mortar, for such uses as filling between the facing-walls of a structure or in the spandrels of a bridge.
    • n moellon In tanning, partly oxidized oil recovered by expression from skins in the process of oil-tanning. It is used in currying leather which has already been tanned by other methods, and for this purpose is sometimes prepared specially from skins that have been repeatedly used. Also called degras.
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Chambers's Twentieth Century Dictionary
    • n Moellon mō′el-lon rubble-stone with mortar, used as a filling in mason-work.
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Webster's Revised Unabridged Dictionary
Chambers's Twentieth Century Dictionary
Fr.,—moelle, marrow—L. medulla, marrow—medius, middle.