brushing shot

brushing shot

[′brəsh·iŋ ‚shät]
(mining engineering)
A charge fired in the air of a mine to blow out obnoxious gases or to start an air current.
References in periodicals archive ?
Further, prior to the survey, almost half of the readers felt they did an excellent or good job brushing their teeth, but after switching to power, the number of readers who felt they did an excellent or good job brushing shot up to 97 percent.