valsalva manoeuvre. The effort to breathe out forcibly while the mouth and nose are firmly closed or the vocal cords pressed together. The valsalva manoeuvre is employed while straining at stool and in other circumstances. It causes a rise in blood pressure followed by a sharp drop and then a second sharp rise in blood pressure.
A device used to grind coffee beans. verb. To grind is defined as to crush, reduce to a powder using friction or to rub two surfaces together forcefully. An example of to grind is using a mortar and pestle to turn cumin seeds into cumin powder.
Confidence votes 275. A grinder is a person whose job on a boat is to use the winches to pull in, let out, haul up or bring down sails. It is the most physically demanding job on a yacht. A grinder is a person whose job on a boat is to use the winches to pull in, let out, haul up or bring down sails.