There are multiple definitions:

1. amiodarone-induced thyrotoxicosis(English)

   • TSH
   • Thyroid and parathyroid
   • https://doi.org…687-9856-2014-8

2. aerobic interval training(English)

   • MCT
   • Exercise & Training
   • https://doi.org…2350-016-0724-8

3. autoimmune thyroiditis(English)

   • AITD, APS
   • Autoimmunity, Thyroid and parathyroid

4. "Alberta" idealized throat(English)

   • refers to an idealized adult upper airway (throat) inlet and the determination of aerodynamic size metrics for inhaler quality control testing
   • ACI, AIM, CPM, EPM, FPM, USP
   • Pharmacology / pharmaceutics, Respiratory system
   • https://doi.org…/jamp.2011.0925

5. ab interno trabeculotomy(English)

   • IOP, OAG
   • Ophthalmology
   • https://doi.org…8.CD011693.pub3

6. auto-ignition temperature(English)

   • CAES, CCHP, CHR, CNG, CNHC, EFC, IDLH, MSDS, SMES, STEL
   • Energy transition
   • https://doi.org…OC.2012.2192469

7. allergen-specific immunotherapy(English)

   • is currently the only potential treatment for allergies including allergic rhinitis (AR) and food allergies (FA) that can modify the underlying course of the diseases
   • AR, FA, DBPCFC, GRADE
   • Allergy, Immunology, Therapeutic approaches
   • https://doi.org…042/BSR20200256
   • https://doi.org….1111/all.15902