Sometimes doctors use words only they understand. It's difficult enough to understand health information without struggling with unfamiliar words. In order to help you better understand your health and improve your communication with your healthcare provider, we have provided an extensive list of medical terms defined using clear, understandable language.
| Aarskog-Scott syndrome |
Aase-Smith syndrome I |
| Aase-Smith syndrome II |
Abdomen |
| Abdomen |
Abdominal aneurysm |
| Abdominal aorta |
Abdominal aortic aneurysm |
| Abdominal cavity |
Abdominal guarding |
| Abdominal guarding |
Abdominal hysterectomy |
| Abdominal hysterectomy |
Abdominal muscle deficiency syndrome |
| Abdominal muscle deficiency syndrome |
Abdominal muscles |
| Abdominal pain |
Abducent nerve |
| Abduction |
Abductor muscle |
| Aberration |
Abiotrophy |
| Ablate |
Ablation |
| ABO blood group |
Abortifacient |
| Abortifacient |
Abortion |
| Abortion |
Abortive |
| Abortive polio |
Abrasion |
| Abruptio |
Abruptio Placenta |
| Abruption |
Abs |
| Abscess |
Abscission |
| Absence of the breast |
Absence seizure |
| Absent eye |
Absolute CD4 count |
| Absorbed dose |
Absorption |
| Abstemious |
AC joint |
| Acanthamoeba |
Acapnia |
| Accelerated phase of leukemia |
Accessory nerve |
| Accessory neuropathy |
Accessory placenta |
| Accommodation |
ACE inhibitor |
| ACE inhibitor |
Acentric chromosome |
| Aceruloplasminemia |
Aceruloplasminemia |
| Acetabular |
Acetabulum |
| Acetaminophen |
Acetone |
| Acetylcholinesterase |
Acetylsalicylic acid (aspirin) |
| Achalasia |
Achilles tendon |
| Achilles tendonitis |
Achilles tendonitis |
| Achillobursitis |
Achillodynia |
| Achlorhydria |
Achondroplasia |
| Achoo syndrome |
Achromatopsia |
| Acid phosphatase |
Acid reflux |
| Acid-base balance |
Acidophilus |
| Acidosis |
Acidosis |
| Acne rosacea |
Acne vulgaris |
| Acoustic neurinoma |
Acoustic neuroma |
| Acquired deafness |
Acquired Immune Deficiency Syndrome |
| Acquired immunodeficiency disease |
Acquired immunodeficiency syndrome |
| Acquired mutation |
Acrocentric chromosome |
| Acrocephalosyndactyly |
Acrochordon |
| Acrocyanosis |
Acrodynia |
| Acromegaly |
Acromioclavicular joint |
| Acromion |
Acrophobia |
| Actinic keratosis |
Active Birth |
| Active immunity |
Acupressure |
| Acupuncture |
Acute |
| Acute |
acute abdomen |
| Acute angle-closure glaucoma |
Acute bacterial prostatitis |
| Acute coronary syndromes |
Acute epiglottitis |
| Acute fatty liver of pregnancy |
Acute idiopathic polyneuritis |
| Acute leukemia |
Acute lymphoblastic leukemia |
| Acute lymphocytic leukemia |
Acute membranous gingivitis |
| Acute myocardial infarction |
Acute necrotizing ulcerative gingivitis |
| Acute otitis media |
Acute pancreatitis |
| Acute respiratory disease |
Acute respiratory distress syndrome |
| Acute thrombocytopenic purpura |
Acute-phase proteins |
| ADA deficiency |
Adam's apple |
| Adams-Stokes disease |
ADCC |
| ADD |
Addiction |
| Addison anemia |
Addison disease |
| Adduction |
Adductor muscle |
| Adenine |
Adenocarcinoma |
| Adenocarcinoma (ad deno carcinoma) |
Adenoiditis |
| Adenoids |
Adenoma |
| Adenomyoma |
Adenomyosis |
| Adenovirus |
Adhesion |
| Adhesion |
Adhesive capsulitis |
| Adipocyte |
Adiponectin |
| Adjuvant chemotherapy |
Adjuvant Therapy |
| Adrenal cortex |
Adrenal failure |
| Adrenal glands |
Adrenal medulla |
| Adrenaline |
Adrenoleukodystrophy |
| Adult onset diabetes |
Adult respiratory distress syndrome |
| Adult-onset diabetes |
Adventitia |
| Adverse effect |
Aerobic exercise |
| Aerophagia |
Aerosinusitis |
| Aerotitis |
Afferent nerve |
| Afferent vessel |
Aflatoxin |
| AFP |
Afterbirth |
| Agammaglobulinemia |
Ageusia |
| Aggressive angiomyxoma |
Agnosia |
| Agonist |
Agoraphobia |
| Agranulocytosis |
Ague |
| Aicardi syndrome |
AIDS |
| AIDS dementia complex |
AIDS-Related Complex |
| Airway |
Airway obstruction |
| Akinesia |
Alagille syndrome |
| Alanine |
Albinism |
| Albumin |
Albuminuria |
| Alcohol abuse |
Alcohol poisoning |
| Aldose reductase inhibitor |
Alexander disease |
| Alkaline phosphatase |
Alkalosis |
| Allergen |
Allergic conjunctivitis |
| Allergic contact eczema |
Allergic granulomatosis |
| Allergic reaction |
Allergic rhinitis |
| Allergic vasculitis |
Allergy desensitization |
| Allergy immunotherapy |
Allergy scratch test |
| Allergy skin test |
Alopecia |
| Alpers disease |
Alpha interferon |
| Alpha thalassemia |
Alpha-1 antitrypsin deficiency |
| Alpha-fetoprotein |
Alport syndrome |
| Alternative medicine |
Altitude sickness |
| Alveolar hydatid disease |
Alveoli |
| Alveoli |
Amebic colitis |
| Amebic dysentery |
Amenorrhea |
| Amenorrhea |
Amino acid |
| Amino Acids |
Amnesia |
| Amniocentesis |
Amnion |
| Amniotic Fluid |
Amniotic sac |
| Ampulla |
Ampullary carcinoma |
| Amputation |
Amsler grid |
| Amyloidosis |
Amyotrophic lateral sclerosis |
| Anal atresia |
Anal fissure |
| Analgesia |
Analgesia |
| Analgesic |
Anaphylactic shock |
| Anaphylactoid purpura |
Anaphylaxis |
| Androgen |
Androgen |
| Anemia |
Anemic |
| Anencephaly |
Anencephaly |
| Anergy |
Anesthesia |
| Anesthesiologist |
Aneurysm |
| Angiitis |
Angina |
| Angiogenesis |
Angiogram |
| Angioma |
Angiopathy |
| Angioplasty |
Angiostatin |
| Angle-closure glaucoma |
Anhidrosis |
| Aniline |
Anomalies |
| Anophthalmia |
Anorexia |
| Anorexia Nervosa |
Anovular menstruation |
| Anovulation |
Anovulatory |
| Antepartum Hemorrhage |
Anterior cruciate ligament |
| Anterior pituitary |
Anterior Position |
| Anthrax |
Anti-inflammatory medications |
| Antibacterial |
Antibiotic |
| Antibodies |
Antibody |
| Anticoagulant |
Antiestrogen |
| Antifungal |
Antigen |
| Antigen |
Antihistamines |
| Antioxidant |
Antiretroviral therapy |
| Antiseptic |
Anxiety |
| Aorta |
Aortic aneurysm |
| Aortic atresia |
Aortic stenosis |
| Apgar Score |
Aplasia |
| Apnea |
Apoplexy |
| Appendectomy |
Appendicitis |
| Apraxia |
Arachnoiditis |
| Areola |
Areola |
| Argentaffinoma |
Aromatherapy |
| Arrythmia |
Arsenic |
| Arterial aneurysm |
arterial blood gas |
| Arterial blood gas |
Arterial blood gas |
| Arterial tension |
Arteriogram |
| Arteriohepatic dysplasia |
Arteriosclerosis |
| Arteriosclerotic aneurysm |
Artery |
| Arthritis |
Arthrocentesis |
| Arthrogryposis |
Arthroscopic |
| Arthrosis |
Artificial abortion |
| Artificial insemination |
Ascites |
| Aseptic |
Asphyxia |
| Aspirate |
Aspiration |
| Aspiration |
Assay |
| Assisted Reproductive Technologists (ART) |
Assistive device |
| Asthma |
Astigmatism |
| Asymptomatic |
Asymptomatic |
| Ataxia |
Atelectasis |
| Atherectomy |
Atherosclerosis |
| Athetosis |
Athlete foot |
| Atonic Uterus |
Atopic dermatitis |
| Atresia |
Atrial arrhythmias |
| Atrial fibrillation |
Atrial septal defect |
| Atrial septum |
Atrophic vaginitis |
| Atrophy |
Attention deficit disorder |
| Atypical |
Atypical Hyperplasia |
| Audiogram |
Auditory brainstem response test |
| Auditory brainstem response test |
Auditory tube |
| Autism |
Autoantibodies |
| Autoimmune Disease |
Autoimmune diseases |
| Autoimmune disorders |
Autoimmune lymphoproliferative sAutoimmune lymphoproliferative syndrome |
| Autoimmune polyendocrinopathy |
Autoimmune polyglandular syndrome |
| Autologous Bone Marrow Transplantation |
Autonomic nervous system |
| Autonomic neuropathy |
Autopsy |
| Autoradiography |
Autosomal |
| Autosomal dominant |
Autosomal recessive |
| Avascular necrosis |
Axilla |
| Axillary |
Azoospermia |
| Azotemia |
|
| Caesarian section |
Caffeine |
| Calcaneal spur |
Calcific bursitis |
| Calcification |
Calcified granuloma |
| Calcitonin |
Calcium |
| Callus |
Calorie |
| Campylobacteriosis |
Canavan disease |
| Cancer |
Cancer Screening |
| Candidiasis |
Canker sore |
| Capacitation |
Capillary |
| Capillary |
Carbohydrate |
| Carbohydrates |
Carbon monoxide poisoning |
| Carbuncles |
Carcinogen |
| Carcinoid tumor |
Carcinoma |
| Carcinoma-In-Situ |
Cardiac |
| Cardiac aneurysm |
Cardiac arrest |
| Cardiopulmonary bypass |
Cardiovascular |
| Carpal Tunnel Syndrome |
Cataract |
| Catheter |
Cerclage |
| Cervical cap |
Cervical Crypts |
| Cervical Dysplasia |
Cervical Ectropion (erosion) |
| Cervical Factor |
Cervical Incompetence |
| Cervical Mucus |
Cervical Neoplasm |
| Cervical Palpation |
Cervix |
| Cesarean Section or C-Section |
Chadwick's sign |
| Chancre |
Chemical Pregnancy |
| Chemotherapy |
Chlamydia |
| Chloasma |
Cholesterol |
| Chorion |
Chorionic Villus |
| Chromosome |
Chronic |
| CIN |
Circulation |
| Circumcision |
Cirrhosis |
| Cleavage |
Cleft palate |
| Clinical Pregnancy |
Clitoris |
| Clomiphene Citrate |
Clostrum |
| Coitus |
Colic |
| Collagen |
Colong-stimulating Factors |
| Colostrum |
Colposcopy |
| Coma |
Comatose |
| Computed Tomography (CT Scans) |
Conception |
| Condom |
Condyloma |
| Cone Biopsy |
Congenital |
| Congenital Anomaly |
Congenital cataract |
| Congenital Defects |
Congenital Herpes |
| Congenital Syphilis |
Congestive Heart Failure |
| Conization of the Cervix |
Conjoined twins |
| Conjugated estrogens |
Constipation |
| Contraception |
Contraceptive |
| Contraction |
Contraction Stress Test |
| Contraindication |
Core Biopsy |
| Coronary Artery Bypass Graft |
Coronary Disease |
| Corpus Luteum |
Cortical Bone |
| Cradle Cap |
Cross-linked N-telopeptides (NTx) |
| Croup (acute laryngotracheobronchitis, LBT) |
Crown-to-rump Length |
| Crowning |
Cryotherapy |
| CT Scan |
Culture |
| Cumulus |
Cure |
| Cyanosis |
Cyst |
| Cystitis |
Cytologist |
| Cytomegalovirus (CMV) infection |
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