| sebum | A thick substance that is secreted by sebaceous glands that consists of fat and cellular debris. (27 Sep 1997) |
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| sebum preputiale | Whitish secretion that collects under the prepuce of the foreskin of the penis or of the clitoris; it is comprised chiefly of desquamating epithelial cells. Synonym: sebum preputiale. (05 Mar 2000) |