Final answer:
The stem 'adeno' in the word adenectomy means 'gland' or 'glandular tissue,' referring to the removal of a gland during surgery.
Step-by-step explanation:
The stem 'adeno' in the word adenectomy refers to 'gland' or 'glandular tissue'. An adenectomy is a surgical procedure involving the removal of a gland. This term is commonly used in medical contexts where the need to excise glandular tissue arises, such as removing the tonsils, which are referred to as a tonsillectomy, or removing adenoids, referred to as an adenoidectomy.