n. A method of joining timbers, in which the tenon is made just long enough to pass through the mortised piece, and a small wedge is driven into a saw-cut in the end of the tenon, with the effect of expanding it, and thus preventing its withdrawal.n. In kneading clay for fine modeling, the process of cutting the clay to pieces, as by means of a strained wire, and then throwing the severed pieces forcibly upon the mass, the object being to expel the air.