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Use "imposthume" in a sentence
"When I first took this task in hand, et quod ait  ille, impellents genio negotium suscepi, this I aimed at;  vel ut lenirem animum scribendo, to ease my mind by writing; for I had gravidum cor, foetum caput, a kind of imposthume in my head, which I was very desirous to be unladen of, and could imagine no fitter evacuation than this."
"Skippon, in the early part of the last century, reports the discharge of the bones of a fetus through an "imposthume" in the groin."
"The poor doctor hastened home, half dead with fear, and was put to bed in the apprehension of a new imposthume; instead of which, he found himself exceedingly recruited in his spirits, and his appetite much mended."