noun
: the operation of dissecting out and removing all the lymph nodes that provide lymphatic drainage for a cancerous area in an effort to prevent lymphatic spread of cancer cells
noun
: the operation of dissecting out and removing all the lymph nodes that provide lymphatic drainage for a cancerous area in an effort to prevent lymphatic spread of cancer cells
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012