- Cells that look abnormal under a microscope but are not cancer.
Definition from: Physician Data Query via Unified Medical Language System at the National Library of Medicine
- 1: Variation in somatotype (as in degree of ectomorphy, endomorphy, or mesomorphy) from one part of a human body to another.
2: Abnormal growth or development (as of organs or cells); broadly: abnormal anatomic structure due to such growth.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.