German: Hemmhof
Like many fields where basic research was done in different countries before science became an international effort, microbiology has some unexpectedly foreign-seeming terminology in German vs. English. Zone of inhibition would nowadays probably be called an Inhibitionszone - but back in the day, they thought nothing of just calling it a nice German Hemmhof.
Here's a fantastic glossary of microbiological terminology for your delectation.
