| pitch wart | A precancerous keratotic epidermal tumour, common among workers in pitch and coal tar derivatives. See: pitch-worker's cancer. (05 Mar 2000) |
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| pitch-worker's cancer | Carcinoma of the skin of the face or neck, arms and hands, or the scrotum, resulting from exposure to carcinogens in pitch, which occurs naturally as asphalt, or as a residue in the distillation of tar. (05 Mar 2000) |
| white pitch | A resinous exudation from the spruce fir or Norway spruce, Picea excelsa; has been used as a counterirritant in the form of a plaster. Synonym: white pitch. (05 Mar 2000) |
| tough-pitch | <chemistry> The exact state or quality of texture and consistency of well reduced and refined copper. Copper so reduced; called also tough-cake. Source: Websters Dictionary (01 Mar 1998) |
| liquid pitch | Obtained by the destructive distillation of the wood of Pinus palustris and other species of Pinus; used internally as an expectorant, and externally in the treatment of skin diseases. Synonym: liquid pitch. (05 Mar 2000) |