noun
: one of a series of glands that open into the esophagus of various oligochaete worms, that secrete calcium carbonate, and that are believed to assist in adjusting the pH of the food material
noun
: one of a series of glands that open into the esophagus of various oligochaete worms, that secrete calcium carbonate, and that are believed to assist in adjusting the pH of the food material
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012