DERK a.
A suffix or terminal formative, much used in anatomical terms, and signifying skin, integument, covering; as, blastoderm, ectoderm, etc.
DEXTRIN n.
A translucent, gummy, amorphous substance, nearly tasteless and odorless, used as a substitute for gum, for sizing, etc., and obtained from starch by the action of heat, acids, or diastase. It is of somewhat variable composition, containing several carbohydrates which change easily to their respective varieties of suga…