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retinasphaltRETINASPHALT', n. A bituminous or resinous substance of a yellowish or reddish brown color, found in irregular pieces very light and shining. [See Retinite.] |
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retinasphaltRETINASPHALT', n. A bituminous or resinous substance of a yellowish or reddish brown color, found in irregular pieces very light and shining. [See Retinite.] |