Lexic.us

Definition of Lias

1. n. The lowest of the three divisions of the Jurassic period; a name given in England and Europe to a series of marine limestones underlying the Oölite. See the Chart of Geology.

Definition of Lias

1. the lowest series of rocks of the Jurassic system [n -ES]

Medical Definition of Lias

1. The lowest of the three divisions of the Jurassic period; a name given in England and Europe to a series of marine limestones underlying the Oolite. Origin: Cf. F. Lias, fr. Liais sort of limestone, OF. Also liois; perh. Of Celtic origin, cf. Armor. Liach, leach, a stone, Gael. Leac, W. Llech. Cf. Cromlech. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Lias

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