- Physical Examination
- Surgical Examination
- Ophthalmology
- Clinical Skills
- Orthopedics
- Surgery Videos
- Laparoscopy
- Pediatrics
- Funny Videos
- Cardiothoracic Surgery
- Nursing Videos
- Plastic Surgery
- Otorhinolaryngology
- Histology and Histopathology
- Neurosurgery
- Dermatology
- Pediatric Surgery
- Urology
- Dentistry
- Oncology and Cancers
- Anatomy Videos
- Health and Fitness
- Radiology
- Anaesthesia
- Physical Therapy
- Pharmacology
- Interventional Radiology
- Cardiology
- Endocrinology
- Gynecology
- Emergency Medicine
- Psychiatry and Psychology
- Childbirth Videos
- General Medical Videos
- Nephrology
- Physiology
- Diet and Food Health
- Diabetes Mellitus
- Neurology
- Women Health
- Osteoporosis
- Gastroenterology
- Pulmonology
- Hematology
- Rheumatology
- Toxicology
- Nuclear Medicine
- Infectious Diseases
- Vascular Disease
- Reproductive Health
- Burns and Wound Healing
- Kidney Zone Podcast
- Other
What does proto- mean in medical terms?
proto-
Meaning: first, original
Type: Prefix
A prefix goes at the very start of a word, before the root. On this page: what proto- means, and real medical words that use it, each broken down into its parts.
Example words using proto-
protozoan
proto- (first) + zo (animal) + an (one belonging to) = a single-celled organism, among the simplest animal-like organisms
proto- (first) + zo (animal) + an (one belonging to) = a single-celled organism, among the simplest animal-like organisms
protopathic
proto- (first, original) + pathic (relating to feeling) = relating to the basic sensations of pain and temperature
proto- (first, original) + pathic (relating to feeling) = relating to the basic sensations of pain and temperature
Shortened forms
Charts and notes shorten long terms — see the Medical Abbreviations guide for the short forms you will meet in real records.
Please note: This section teaches the language of medicine — what word parts mean and how terms are built. It is an educational reference, not medical advice. For the meaning of a word in your own medical record, ask the clinician who wrote it.