There are multiple definitions:

1. large-conductance calcium ion-activated K+ channel(English)

   • IK, SK, VDCC
   • Calcium, Channelopathy, Potassium

2. polyomavirus hominis 1(English)

   • first isolated in 1971 from the urine of a renal transplant patient with initials B.K.; also denoted as BKV
   • BKV
   • Virology
   • https://doi.org…3099(03)00770-9