A bench in a grade school's public area meant for a child on free time in need of someone to talk with, and whoever joins him there for that reason.

present participle of start the ball rolling

One who, or that which, ejects or dispossesses. / (mechanics) A jet jump for lifting water or withdrawing air from a space.

(genetics) A genomic evolutionary rate profiling score that measures the evolutionary conservation of a particular genetic sequence across species