Ancient Geography, a town of the Regni, a people in Britain, next the Cantii, now Surrey, Sussex, and the coast of Hampshire, (Camden); a town situated, by the Itinerary numbers, on the confines of the Belgae, in a place now called Ringwood, in Hampshire, on the rivulet Avon, running down from Salisbury, and about ten miles or more distant from the sea.

Regrator, signifies him who buys and sells any wares or victuals in the same market or fair; and regrators are particularly described to be those who buy, or get into their hands, in fairs or markets, any grain, fish, butter, cheese, sheep, lambs, calves, swine, pigs, geese, capons, hens, chickens, pigeons, conies, or other dead victuals whatsoever, brought to a fair or market to be sold there, and do sell the same again in the same fair, market, or place, or in some other within four miles thereof.

Regrating is a kind of huckstry, by which victuals are made dearer; for every seller will gain something, which must of consequence enhance the price. And, in ancient times, both the engrosser and regrator were comprehended under the word forestaller. Regrators are punishable by loss and forfeiture of goods, and imprisonment, according to the first, second, or third offence, &c.

Regensberg, a handsome though small town of Switzerland, in the canton of Zurich, and capital of a bailiwick of the same name, with a strong castle, seated on a hill, which is part of Mount Jura. There is a well sunk through a rock, 36 fathoms deep.

Regular, denotes any thing that is agreeable to the rules of art: thus we say, a regular building, verb, &c.

A regular figure in geometry, is one whose sides, and consequently angles, are equal; and a regular figure with three or four sides is commonly termed an equilateral triangle or square, as all others with more sides are called regular polygons.

Regular Body, called also Platonic Body, is a body or solid comprehended by like, equal, and regular plane figures, and whose solid angles are all equal.

The plane figures by which the solid is contained are the faces of the solid; and the sides of the plane figures are the edges or linear sides of the solid.

There are only five regular solids, viz.

The tetrahedron, or regular triangular pyramid, having four triangular faces; The hexahedron, or cube, having six square faces; The octahedron, having eight triangular faces; The dodecahedron, having twelve pentagonal faces; The icosahedron, having twenty triangular faces.

Besides these five, there can be no other regular bodies in nature.