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shale
1. A shell or husk; a cod or pod. "The green shales of a bean."
2. [G. Shale.
<geology> A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. Bituminous shale. See Bituminous.
Origin: AS. Scealy, scalu. See Scalme, and cf. Shell.
Source: Websters Dictionary
(01 Mar 1998)
CancerWEB ¿µ¿µ ÀÇÇлçÀü À¯»ç °Ë»ö °á°ú : 1 ÆäÀÌÁö: 1
alum shale
<chemical> A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effloresces on the rock.
Source: Websters Dictionary
(01 Mar 1998)
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