REDIA n.
A kind of larva, or nurse, which is prroduced within the sporocyst of certain trematodes by asexual generation. It in turn produces, in the same way, either another generation of rediæ, or else cercariæ within its own body. Called also proscolex, and nurse. See Illustration in Appendix.
SEBACEOUS a.
as, the sebaceous secretions of some plants, or the sebaceous humor of animals. Sebaceous cyst (Med.), a cyst formed by distention of a sebaceous gland, due to obstruction of its excretory duct. -- Sebaceous glands (Anat.), small subcutaneous glands, usually connected with hair follicles. They secrete an oily semiflui…