There are multiple definitions:

1. isovolumic [contraction] acceleration(English)

   • refers to lateral tricuspid annular structure
   • EF, FAC, FLC, GLS, MPI, RVEF, TAPSE
   • Physiology, Cardiology
   • https://doi.org…echocard/jer138

2. Inkomensvoorziening Volledig Arbeidsongeschikten(Dutch)

   • UWV, WGA, WIA
   • Legal issues
   • https://www.jud…-iva-uitkering/

3. intravitreal aflibercept(English)

   • anti-vascular endothelial growth factor (anti-VEGF) agent
   • AMD, VEGF
   • Ophthalmology, Endothelium
   • https://doi.org…886-020-01468-z

4. in vitro activation(English)

   • approach providing a promising infertility treatment for patients with premature ovarian insufficiency. The method promotes growth of residual ovarian follicles following ovarian tissue fragmentation leading to Hippo signalling disruption, together with in-vitro incubation with Akt stimulators
   • IVF, POI, POR
   • Embryology /reproduction, Pregnancy
   • https://doi.org…bmo.2019.09.007

5. index of vertical asymmetry(English)

   • the mean difference between superior and inferior corneal curvature, expressed in mm
   • CTSP, PPI, PTI, IHA, PPI-Avg
   • Ophthalmology
   • https://doi.org…ijo.IJO_2111_20

6. intracranial vertebral artery(English)

   • BA, CVA, EVA, FV, TCD, VA, CTA, BA/EVA
   • Brain (dys)function, Hemodynamics, Vessel properties, Cerebrovascular event
   • https://doi.org…1/hs0102.100484

7. idiopathic ventricular arrhythmia(English)

   • a spectrum of ventricular arrhythmias without structural heart disease
   • LVOT, PVC, RVOT, SHD, VA, VT
   • Cardiology, Electrophysiology, Pathology
   • https://pubmed.…h.gov/35687704/