Smeg"ma (?), n. [NL., fr. Gr. soap, fr. to wash off.] Physiol.
The matter secreted by any of the sebaceous glands.
Specifically: (a)
The soapy substance covering the skin of newborn infants
. (b)
The cheesy, sebaceous matter which collects between the glans penis and the foreskin.
© Webster 1913.