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One of a group of gastropod mollusks, with a shell composed of eight movable dorsal plates. See Polyplacophora.

mon salt. It is powerful oxidizing, bleaching, and disinfecting agent. Symbol Cl. Atomic weight, 35.4. Chlorine family, the elements fluorine, chlorine, bromine, and iodine, called the halogens, and classed together from their common peculiariries.

A steelyard for weighting grain.

A clog, or patten, having a very thick sole, or in some cases raised upon a stilt to a height of a foot or more. [Variously spelt chioppine, chopin, etc.] Your ladyship is nearer to heaven than when I saw you last, by the altitude of a chopine. Shak.

A comparatively rare element occurring most abundantly in the mineral chromite. Atomic weight 52.5. Symbol Cr. When isolated it is a hard, brittle, grayish white metal, fusible with difficulty. Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc., which are brilliantly colore…

One who, or that which, has no weight or influence. Here he was a mere cipher. W. Irving.

kind of circular valley in the side of a mountain, walled around by precipices of great height.

age. Byron. Mr. Greaves may justly be reckoned a classical author on this subject [Roman weights and coins]. Arbuthnot.

r and other divisions by means of hands moving on a dial plate. Its works are moved by a weight or a spring, and it is often so constructed as to tell the hour by the stroke of a hammer on a bell. It is not adapted, like the watch, to be carried on the person.

Formerly an allowance of two pounds in every three hundred weight after the tare and tret are subtracted; now used only in a general sense, of small deductions from the original weight. [Written also clough.] McCulloch.

A weight, as a log or block of wood, attached to a man or an animal to hinder motion. As a dog . . . but chance breaks loose, And quits his clog. Hudibras. A clog of lead was round my feet. Tennyson.

A weight. A clove of cheese is about eight pounds, of wool, about seven pounds. [Prov. Eng.] Halliwell.

Cob money, a kind of rudely coined gold and silver money of Spanish South America in the eighteenth century. The coins were of the weight of the piece of eight, or one of its aliquot parts.

reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co.

aniels kept for hunting or retrieving game or for household pets. They usually weigh from eighteen to twenty-eight pounds. They have the head of fair length, with square muzzle, the ears long and set low, the legs short or of medium length, and the coat fine and silky, wavy but not curly. Various colors are bred, as bl…

A pit, or inclosed area, for cockfights. Henry the Eight had built . . . a cockpit. Macaulay.

A horse, not of pure breed, but having only one eighth or one sixteenth impure blood in his veins. Darwin.

ng the cocoanut (Cocos nucifera). It grows in nearly all tropical countries, attaining a height of sixty or eighty feet. The trunk is without branches, and has a tuft of leaves at the top, each being fifteen or twenty feet in length, and at the base of these the nuts hang in clusters; the cocoanut tree.…

reement. The very concurrence and coincidence of ao many evidences . . . carries a great weight. Sir M. Hale. Those who discourse . . . of the nature of truth . . . affirm a perfect coincidence between truth and goodness. South.

a variety of the mineral columbite occurring in Connecticut, probably at Haddam. Atomic weight 94.2. Symbol Cb or Nb. Now more commonly called niobium.