| rosin | The hard, amber-coloured resin left after distilling off the volatile oil of turpentine; colophony. Rosin oil, an oil obtained from the resin of the pine tree, used by painters and for lubricating machinery, etc. Origin: A variant of resin. Source: Websters Dictionary (01 Mar 1998) |
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| hardened pelvis | A condition in which the true pelvis is indurated throughout, especially by carcinoma. Synonym: hardened pelvis. (05 Mar 2000) |