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countable and uncountable, plural shales
A shell or husk; a cod or pod. quotations examples
the green shales of a bean
c. 1610s, Homer (attributed), translated by George Chapman, The Crowne of all Homers Workes: Batrachomyomachia, or the Battaile of Frogs and Mise […], published 1624
(geology) A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. quotations
As on all large green roofs, the soil is not dirt exactly but a gravel-like growing medium of granulated pumice, shales, clays and other minerals.
2007 March 23, Patricia Leigh Brown, “The Window Box Gets Some Tough Competition”, in New York Times
third-person singular simple present shales, present participle shaling, simple past and past participle shaled
To take off the shell or coat of. examples