Definition of Riska. Meaning of Riska. Synonyms of Riska
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Definition of Riska
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Friskal Friskal Frisk"al, n.
A leap or caper. [Obs.] --B. Jonson.
Oriskany Oriskany O*ris"ka*ny, a. [From Oriskany, in New York.] (Geol.)
Designating, or pertaining to, certain beds, chiefly
limestone, characteristic of the latest period of the
Silurian age.
Oriskany period, a subdivision of the American Paleozoic
system intermediate or translational in character between
the Silurian and Devonian ages. See Chart of Geology.
Oriskany period Oriskany O*ris"ka*ny, a. [From Oriskany, in New York.] (Geol.)
Designating, or pertaining to, certain beds, chiefly
limestone, characteristic of the latest period of the
Silurian age.
Oriskany period, a subdivision of the American Paleozoic
system intermediate or translational in character between
the Silurian and Devonian ages. See Chart of Geology.