For a medical usage of "strangulate" where "strangle"
would not fit, a hernia of the bowel through the
inguinal canal may have arterial input continue
after lower pressure venous flow becomes impossible.
The extruded portionfinally develops enough pressure
than arterial input ceases, and lack of oxygen causes necrosis of the contents of the hernia. Such an
inteference with circulation is called "strangulation".

Edit: I edited the damned thing, but the corrections did
not appear. Sorry about screen going wide.

"Strangury" is the agony caused by a kidney stone too
big to be passed.