Noun
SILS (uncountable)
(medicine, surgery) Initialism of single-incision laparoscopic surgery.
The Josty company had been founded in 1793 by two Swiss brothers, Johann and Daniel Josty, who had emigrated to Berlin from Sils in Switzerland and set up a bakery from which the café was a 1796 offshoot. Source: Internet
He spent many summers in Sils Maria near St. Moritz in Switzerland. Source: Internet