A preparation made of equal parts of gelatin and glycerin; a firm mass liquefying at gentle heat: Glycerogelatin is used as a vehicle for suppositories and urethral bougies.

A "bougie" (boo ZHEE, BOO zhee) is a slender cylindrical instrument of rubber, waxed silk, or other material, for introduction into the body passages, such as the urethra, anus, or other canal.

Glycerogelatin,is also defined as a suppository, particularly for insertion into the urethra.