Surgery to remove part of an organ or gland. It may also be used to remove a tumor and normal tissue around it. In lung cancer surgery, segmentectomy refers to removing a section of a lobe of the lung. Also called segmental resection.
<procedure> Excision of a segment of any organ or gland. ... (05 Mar 2000) ... 
Type: Term Pronunciation: seg′men-tek′tŏ-mē Definitions: 1. Excision of an anatomic segment of any organ or gland.
Operation to remove a segment of a body organ, for example a segment of a lung.