There are multiple definitions:

1. excitatory amino acid(English)

   • NAD
   • Cell biology, Toxicology, Mitochondrion
   • https://doi.org…0/cells14080582

2. poly-ethylene co-acrylic acid(English)

   • PEO, PET

3. extrinsic allergic alveolitis(English)

   • aka hypersensitivity pneumonitis
   • AA, HP
   • Allergy, Pulmonology
   • https://radiolo…common-diseases

4. essential amino acid(English)

   • TPRO
   • https://doi.org…res.2015.02.003

5. epigenetic age acceleration(English)

   • epigenetic clocks estimate chronologic age using methylation levels at specific loci. Multiple cardiometabolic, hematologic, and physical function features characterize individuals, with higher values for phenoclusters summarizing lung function and lipids, and lower values for a phenocluster representing physical function
   • DNAm, EAD, BHS, BMI, CVD, CVH, CVRF, DBP, DNAme, EEAA, HDL-C, IEAA, SBP, TG
   • Epigenetics, Aging, Risk factor
   • https://doi.org…CGEN.122.003772
   • https://doi.org…bts.2024.01.018
   • https://doi.org…cao.2025.06.001