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Confused over medical jargon? Find definitions for thousands of medical terms, treatments, and tests -- even health-related abbreviations, prefixes, and suffixes.
- abdomen
- abdominal
- abdominal cavity
- abdominal hysterectomy
- abdominal migraine
- abdominoperineal resection (APR)
- abductor (muscle)
- ablation
- abnormal
- abreaction
- abscess
- absence seizure
- absorb
- absorption
- abutment
- acanthosis nigricans
- accommodation
- ACE inhibitor
- acetaminophen (APAP)
- acetylcholine (ACH, Ach)
- achalasia
- achievement test
- Achilles tendon
- achromatopsia
- acid phosphatase
- acne
- acquired immunodeficiency syndrome
- acrophobia
- acrosome
- acrylic resin
- actinic keratosis
- action tremor
- active immunity
- activities of daily living (ADLs)
- acupuncture
- acute
- acute schizophrenia
- ADA
- add.
- addiction
- adductor muscle
- adenocarcinoma
- adenoidectomy
- adenoids
- adenoma
- adenopathy
- ADHD
- adherence
- adhesive capsulitis
- adjustment disorders
- adjuvant
- adjuvant chemotherapy
- adrenaline
- advance directive
- advanced glycation end-products
- adverse effect
- aerobic
- affect
- age-related macular degeneration
- agglutination
- aggression
- agnosia
- agonist
- agoraphobia
- agranulocytosis
- AIDS
- AIDS dementia
- AIDS-related complex (ARC)
- air contrast barium enema
- akathisia
- akinesia
- alanine aminotransferase (ALT)
- alanine (A, Ala)
- albumin
- albuminuria
- albuterol
- alcohol
- alcoholism
- alexithymia
- alkaline phosphatase
- allergen
- allergen immunotherapy
- allergic granulomatous angiitis
- allergic rhinitis
- allergist
- allergy
- allograft
- allopurinol
- aloe
- alopecia
- alpha rhythm
- -alpha--tocopherol (-alpha--T)
- alprostadil
- alveolar bone
- alveoli
- Alzheimer disease (AD)
- amalgam
- amblyopia
- amebiasis
- amenorrhea
- aminotransferase
- ammonia
- amphetamine
- amygdala
- amyloid
- amyloid--beta- peptide
- amyotrophic lateral sclerosis (ALS)
- amyotrophy
- anaerobic
- anal fissure
- anal fistula
- analgesia
- analgesic
- anaphylaxis
- anaplastic
- anaplastic cell
- anastomosis
- androgen
- anemia
- anergic
- anesthesia
- anesthetic
- aneurysm
- angiitis
- angina
- angioedema
- angiogenesis
- angiography
- angioma
- angioplasty
- angioplasty balloon
- anhedonia
- ankle-foot orthosis
- ankylosing spondylitis
- anorexia
- anorexia nervosa
- anorgasmy
- anoscope
- anovulation
- anoxia
- antacid
- anterior chamber of eyeball
- anterograde memory
- antiandrogen
- antiarrhythmic
- antibiotic
- antibody(Ab)
- anticholinergic
- anticoagulant
- anticonvulsant
- antidepressant
- antidiarrheal
- antiemetic
- antigen(Ag)
- antihistamines
- antihypertensive
- antiinflammatory
- antineutrophil cytoplasmic antibodies (ANCA)
- antineutrophil cytoplasmic antibody
- antinuclear antibody (ANA)
- antioxidant
- antiphospholipid antibodies
- antiphospholipid-antibody syndrome
- antiplatelet
- antisocial personality disorder
- antispasmodic
- antithyroglobulin antibody
- antitussive
- antiviral
- anulus fibrosus of intervertebral disc
- anus
- anxiety
- anxiety disorders
- anxiolytic
- aorta
- aortic coarctation
- aortic insufficiency
- aortic regurgitation
- aortic stenosis
- aortic valve
- apathy
- apex
- aphasia
- aphtha
- apnea
- apnea-hypopnea index (AHI)
- apomorphine hydrochloride
- apoplexy
- apoptosis
- appendectomy
- appendicitis
- appendix
- apraxia
- aptitude test
- aqueous humor
- arachnoiditis
- arachnophobia
- arch-
- areola
- Arnold-Chiari deformity
- aromatase inhibitors
- arrhythmia
- arsenic(As)
- arteriography
- arteriosclerosis
- arteriovenous malformations (AVM)
- arteritis
- artery (a)
- arthritis
- arthritis mutilans
- arthrocentesis
- arthroplasty
- arthroscopy
- artificial crown
- artificial insemination
- asbestos
- ascending colon
- ascites
- Asperger disorder
- aspiration
- aspirin
- assay
- assessment
- assimilation
- assisted reproductive technology
- AST
- asthenopia
- asthma
- astigmatism
- asymmetry
- asymptomatic
- ataxia
- atelectasis
- atheromatous plaque
- atherosclerosis
- athetosis
- atonic seizure
- atopic eczema
- atopy
- atrial fibrillation
- atrial flutter
- atrial septal defect
- atrioventricular node (AV node)
- atrium of heart
- atrophic vaginitis
- atrophy
- attention deficit hyperactivity disorder (ADHD)
- attention span
- atypical
- atypical absence seizure
- atypical ductal hyperplasia
- auditory hallucination
- aura
- autism
- autograft
- autoimmune
- autoimmune disease
- autoimmune hepatitis (AIH)
- autoimmunity
- autologous
- autonomic
- autonomic nervous system (ANS)
- autonomy
- autophobia
- autopsy
- avoidant personality disorder
- axilla
- axon
- axonal degeneration
- azoospermia
- AZT
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