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Medical Dictionary Definitions A - Z
The medical dictionary covers terminology of over 12,000 healthcare words including medical terms, diseases, conditions, diagnostic test and procedures. These definitions are provided by National Library of Medicine (NLM), National Institutes of Health (NIH), and the Department of Health and Human Services (HHS). To find a term in the dictionary, begin by clicking on a letter in the A-Z list or type your medical word in the search box and click the search button.| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Go |
- Abdominal wall reconstruction
- Abscess
- Acid reflux
- Acl injuries
- Acl reconstruction
- Acne
- Acne rosacea
- Acne vulgaris
- Acquired brain injury
- Acromegaly
- Acute idiopathic polyneuritis
- Acute inflammatory polyneuropathy
- Acute pancreatitis
- Acute respiratory distress syndrome
- Add
- Addison disease
- Adenoid cystic carcinoma
- Adenoidectomy
- Adenoids
- Adenoma
- Adhd
- Adrenal carcinoma
- Adrenal gland cancer
- Adrenal gland disorders
- Adrenal insufficiency
- Adrenal tumor
- Adrenalectomy
- Adrenocortical carcinoma
- Adrenocortical hypofunction
- Af
- Afib
- After surgery
- Agnogenic myeloid metaplasia
- Agoraphobia
- Alopecia
- Als
- Alzheimer's caregivers
- Alzheimer’s disease
- Amenorrhea
- Amputation
- Amyloidosis
- Amyotrophic lateral sclerosis
- Anal cancer
- Anal disorders
- Anal fissures
- Anal fistula
- Analgesic nephropathy
- Anemia
- Anencephaly
- Aneurysm and arteriovenous malformation
- Aneurysms
- Angiitis
- Angina
- Ankle surgery
- Anorectal diseases
- Anorexia nervosa
- Anterior cruciate ligament injury
- Antibiotic resistance
- Antimicrobial resistance
- Antisocial personality disorder
- Aortic stenosis
- Apnea, sleep
- Appendectomy
- Appendicitis
- Arachnoiditis
- Ards
- Arnold-chiari malformation
- Arrhythmia
- Arteriosclerosis
- Arteriosclerosis of extremities
- Arteriosclerosis, coronary
- Arteriovenous malformations
- Arthritis
- Arthrography
- Arthroplasty
- Arthroscopic surgery, shoulder or knee
- Arthroscopy
- Artificial disc replacement
- Artificial feeding
- Artificial hydration and nutrition
- Artificial lens
- Artificial limbs
- Asbestos
- Asbestosis
- Asd
- Aseptic meningitis
- Asperger syndrome
- Asthma
- Atherosclerosis
- Atherosclerosis, coronary
- Atrial fibrillation
- Attention deficit hyperactivity disorder
- Autism spectrum disorder
- Autoimmune diseases
- Autoimmune hepatitis
- Autoinflammatory disorders
- Autonomic dysfunction
- Avm