There are multiple definitions:

1. ear-nose-throat(English)

   • KNO
   • Audiology, Sleep medicine

2. equilibrative nucleoside transporter(English)

   • mediates both influx and efflux of nucleosides across the membrane
   • CNT
   • Membranes
   • https://doi.org…498250801927427

3. ectonucleotidase(English)

   • an extracellular enzyme with a pivotal role in inflammation that hydrolyse extracellular purine and pyrimidine nucleotides
   • S/IKCa, sGC, TCCD, TCD, tdNRIS, THb, VSMC, 20-HETE, AA, ADO, BKCa, BOLD, cGMP, COX1, cwNIRS, ECoG, eNOS, EP4, ERP, fdNIRS, fMRI, fNIRS, HbO2, HbR, IKCa, KIR, MEG, mGluR5, NIRS, nNOS, NVC, PCAv, PET, PG, PLA2, PLD2, QEEG, REG
   • Enzymes, Brain (dys)function, Medical imaging, Neurology
   • https://doi.org/10.1113/ep092060