A Push, a force impressed. As a push of the bayonet. This word is peculiarly applicable to the use that ought to be made of this formidable weapon.

PUSILLANIMOUS, cowardly, wanting spirit.

To PUT a horse, in horsemanship, signifies to break or manage him.

To PUT a horse upon his haunches, to force him to bend them in galloping in the manege, or upon a stop.

PUTTING-STONE, a great stone, which formerly was laid at the gate of a laird in Scotland, and by which he tried the bodily strength of each man in his clan.

PYKE, Ind. a person employed as a guard at night.

PYRAMID, (Pyramide, Fr.) This word is originally derived from the Greek, and takes its name from a resemblance to the spiral ascendancy of fire. It is the same as obelisk.

Geometrical Pyramid, a solid standing on a square basis, and terminating at the top in a point; or a body whose base is a polygon, and whose sides are plain triangles, their several tops meeting together in one point.

Pyramid, (in architecture,) a solid, massy edifice, which from a square, triangular, or other base, arises in gradual dimension to a vertex or point.

PYRAMIDAL numbers, (in arithmetic,) the sums of polygonal numbers, collected after the same manner as the polygon numbers themselves are extracted from arithmetical progression.