6/9/26, 4:09 HESI A2 entrance Exam Medical Terminology Mastery: 300+ Must-Know
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Definitions — Anatomy, Pathology, Surgical Terms, Clinical Vocabulary & Body
Planes | Pre-Nursing Exam Prep Study Guide (2024–2025)
Adenoma Tumor of a gland
Adenitis Inflammation of a gland
Arthritis Inflammation of a joint
Biology Study of life
Biopsy Removal of living tissue and examination under a microscope.
Carcinoma Cancerous tumor.
Cardiology Study of the heart.
Cephalic Pertaining to the head.
Cerebral Pertaining to the brain.
Incision Process of cutting into.
Excision Process of cutting out.
Endocrine glands Glands that secrete hormones within the body.
Cystoscopy Process of visual examination of the urinary bladder.
Cytology Study of cells.
Dermatitis Inflammation of the skin.
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Hypodermic Pertaining to under the skin.
Electrocardiogram Record of the electricity in the heart.
Electroencephalogram Record of the electricity of the brain.
Enteritis Inflammation of the intestines.
Erythrocyte A red blood cell.
Gastrectomy Removal of the stomach.
Gastrotomy Incision of the stomach.
Diagnosis State of complete knowledge; information gathered about a patient's
illness.
Prognosis Prediction about the outcome of an illness.
Gynecology Study of females and female diseases.
Hematology Study of blood.
Hematoma Collection (mass) of blood.
Hepatitis Inflammation of the liver.
Iatrogenic Pertaining to being produced by treatment.
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Leukocyte White blood cell
Nephritis Inflammation of the kidney.
Nephrology Study of the kidney.
Neurology Study of the nerves.
Oncology Study of tumors.
Oncologist Specialist in the study of tumors.
Ophthalmoscope Instrument for visual examination of the eye.
Osteitis Inflammation of the bone.
Osteoarthritis Inflammation of bone and joints.
Pathology Study of disease.
Pathologist One who studies diseases performs autopsies and examines biopsy
samples.
Pediatric Pertaining to treatment of children.
Psychology Study of the mind.
Psychiatrist Specialist in the treatment of the mind.
Radiology Study of x-rays.
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