There are multiple definitions:

1. acute coronary syndrome(English)

   • NSTE-ACS, PMI, TCFA, CCS, KS, ABC-ACS, DES, EEM, FCT, FLIM, ICG, IVPA, IVUS, LMS, MACE, maxLCBI4mm, LCBI, NIR, NIRAF, NIRF, NIRS, OCT, PAV, PB, PCI
   • Coronary circulation, Pathology, Atherosclerosis /atherogenic
   • https://doi.org…hrt-2018-000934
   • https://doi.org…2872-018-0781-9
   • https://doi.org…cin.2024.07.007

2. American College of Surgeons(English)

   • NSQIP
   • Surgery, Organizations (clinical)
   • https://www.facs.org/

3. American Cancer Society(English)

   • AICR, ASCC, CRC
   • Oncology, Organizations (documentation)
   • https://www.cancer.org/

4. 1-aminocyclopropane-1-carboxylic acid synthase(English)

   • CmACS

5. American Chemical Society(English)

   • AIChE
   • Biochemistry, Organizations (documentation)
   • https://www.acs…ent/acs/en.html

6. accepted community standard(English)

   • Standards

7. abnormally contracting segment(English)

   • measured as a percent of end-diastolic ventriculographic perimeter
   • PCI, EF, LVEF, XEF
   • Cardiology, Model(ing)
   • https://pubmed.…nih.gov/884815/

8. Association of Clinical Scientists(English)

   • ASS, HCPC
   • Organizations (clinical), Organizations (scientific)
   • https://www.ahc…ssessment-unit/

9. autonomous cortisol secretion(English)

   • a condition with ACTH-independent cortisol overproduction from adrenal incidentalomas (AI) or adrenal hyperplasia
   • ACTH, AI
   • Cortisol
   • https://dx.doi.…1530/EC-20-0419

10. acute chest syndrome(English)

    • a frequent cause of acute lung disease in children with sickle cell disease. Patients may present with ACS or may develop this complication during the course of a hospitalization for acute vaso-occlusive crises (VOC). Associated with prolonged hospitalization, increased risk of respiratory failure, and the potential for developing chronic lung disease. More than half of all children with homozygous SCD (HbSS) experience at least one episode of ACS in the first decade of life. Recurrent episodes may herald the onset of debilitating chronic lung disease. Although most of the evidence for clinical management and prevention is derived from the experience in patients with HbSS, ACS should be aggressively managed irrespective of the SCD genotype. The three major identifiable etiologies for the development of ACS are pulmonary infections, pulmonary fat embolism from necrotic bone marrow, and pulmonary infarction
    • RBC, SCD, VOC, HbSS
    • Pulmonology, Pediatrics
    • https://doi.org…9/ped.2017.0814

11. anterior circulation stroke(English)

    • NIHSS, PCS
    • Cerebrovascular event
    • https://doi.org…eur.2021.682827

12. abdominal compartment syndrome(English)

    • defined as intra-abdominal hypertension associated with organ dysfunction. This condition potentially has high lethality that must be recognized early and effectively managed in order to optimize outcome. Most associated deaths are due to sepsis or multiple organ failure
    • IAP, IAH
    • Gastroenterology, Hypertension, Emergency medicine
    • https://doi.org/10.1186/cc646

13. ARS Consensus Sequence(English)

    • ARS, DNA, DUE, NOIR, OIR, SIDD
    • Genetics
    • https://doi.org…1756-0500-5-643

14. air-conducted sound(English)

    • BCV, GVS
    • Auditory system
    • https://doi.org…nph.2009.08.002

15. Automated Corneal Shaper(English)

    • CCM, WHO
    • Ophthalmology
    • https://doi.org…crs.2003.10.024

16. absorbable collagen sponge(English)

    • anabolic peptide has positive anabolic effects on bone cells
    • AP, TCP, rhBMP-2
    • Dentistry, Skeleton and bone (formation), Cell biology
    • https://doi.org…jop.2010.090224
    • https://doi.org…1X.2004.00541.x

17. autologous conditioned serum(English)

    • APS, IL-1β, OA, IL-1Ra
    • Hematology
    • https://doi.org…ets.2021.602978

18. antenatal corticosteroids(English)

    • decrease neonatal mortality and morbidity among preterm neonates, yet there has been concern regarding their long-term safety
    • LPT
    • Obstetrics, Neonatology, Therapeutic approaches
    • https://doi.org…ild-2021-322152
    • https://doi.org…jrh2023/v27i7.3