He had been seeking a precipitation test for the diagnosis of syphilis which should be quicker and simpler than the Wassermann.
I’m a respectable, moral young man, and Lord how I’d hate it, if it wasn’t for my precipitation test and you and— WHY do you always lose your trunk check? I suppose I am a bad example for others, giving up so easily.
Martin had little time for anything but cultures, blood-tests, and Wassermanns for the private physicians of the city, but the work rested him, and now and then he struggled over a precipitation test which was going to replace Wassermanns and make him famous.
There are no more uses of "precipitation" in the book.
Show samples from other sources
Meg tried to catch the precipitation on her tongue, which I thought a very ineffective way to get a drink—and of dirty water, no less.
Rick Riordan -- The Trials of Apollo
…obtrusively, obsessively, always with a painful shock: what time was it in London? always adding and subtracting, totting up the time difference, compulsively checking the London weather on my phone, 53 degrees Fahrenheit, 10:12 p.m. and light precipitation, standing on the corner of Greenwich and Seventh Avenue by boarded-up St. Vincent’s heading downtown to meet my dealer, and what about Pippa, where was she? in the back of a taxicab, out at dinner, drinking with people I didn’t…