- Dysmotility syndrome definition - Diabetes Mellitus, Type 2, Type 1, and Metabolic Disorders treatment and medications
- A (adenine)
- AAA
- AAAS
- AAD
- AAFP (American Academy of Family Physicians)
- AAO
- AAOS (American Academy of Orthopaedic Surgeons)
- AAP
- Abdomen
- Abdominal cavity
- Abdominal hysterectomy
- Abdominal muscles
- Abduction
- Abductor muscle
- Aberration
- Ablate
- Ablation
- ABO blood group
- Abortion
- Abortion, habitual
- Abortion, multiple
- Abortion, recurrent
- Abrasion
- Abruptio (abruptio placentae)
- Abscess
- Abscess, peritonsillar
- Abscess, skin
- Absolute CD4 count
- Absorption
- Acapnia
- Accelerated phase of leukemia
- Accessory placenta
- Accoucheur
- Accoucheuse
- ACE (angiotensin converting enzyme)
- ACE inhibitors
- Acentric chromosome
- Acetabulum
- Acetylsalicylic acid (aspirin)