Webster’s Revised Unabridged Dictionary · 1913
Prian
Pri′an (·an), n. [Cornish, clayey ground, from pri clay.] (Mining) A fine, white, somewhat friable clay; also, the ore contained in a mixture of clay and pebbles. [Written also pryan.]
Webster’s Revised Unabridged Dictionary · 1913
Pri′an (·an), n. [Cornish, clayey ground, from pri clay.] (Mining) A fine, white, somewhat friable clay; also, the ore contained in a mixture of clay and pebbles. [Written also pryan.]