Lum(lm), n. [W. llumon chimney, llum that shoots up or ends in a point.] 1. A chimney. [Prov. Eng. & Scot.] Burns.
2. A ventilating chimney over the shaft of a mine.
3. A woody valley; also, a deep pool.
Lu`ma*chel"la(?), } n. [F. lumachelle, It. lumachella, fr. lamachella a little snail, dim. of lumaca a snail, fr. L. limax, -acis.] (Min.) A grayish brown limestone, containing fossil shells, which reflect a beautiful play of colors. It is also called fire marble, from its fiery reflections.
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Wed 19th December 2018