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Any element, atom, or radical, having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad; as, nitrogen is a pentad in the ammonium compounds.

An unsaturated hydrocarbon, C5H8, of the acetylene series. Same as Valerylene.

Pertaining to, or desingating, an acid (called also valeric acid) derived from pentane.

ent to the name of which it is prefixed in the respective compounds exercised its highest valence; now, only that the element has a higher valence than in other similar compounds; thus, barium peroxide is the highest oxide of barium; while nitrogen and manganese peroxides, so-called, are not the highest oxides of those…

Odd; not even; -- said of elementary substances and of radicals whose valence is not divisible by two without a remainder. Contrasted with artiad.

The equivalent of an additional circuit or wire, in reality not existing, obtained by certain arrangements of real circuits, as in some multiplex telegraph systems.

; -- said of an acid (called also delphinic acid) subsequently found to be identical with valeric acid. Watts.

ing phosphorus; specifically, designating those compounds in which phosphorus has a lower valence as contrasted with phosphoric compounds; as, phosphorous acid, H3PO3.

Type confusedly mixed. See Pi. By cock and pie, an adjuration equivalent to "by God and the service book." Shak. -- Tree pie (Zoöl.), any Asiatic bird of the genus Dendrocitta, allied to the magpie. -- Wood pie. (Zoöl.) See French pie, under French.

coins of various values formerly coined in some countries of Europe. In Spain it was equivalent to a quarter doubloon, or about $3.90, and in Germany and Italy nearly the same. There was an old Italian pistole worth about $5.40.

inum; -- used specifically to designate those compounds in which the element has a higher valence, as contrasted with the platinous compounds; as, platinic chloride (PtCl4).

tinum; -- used specifically to designate those compounds in which the element has a lower valence, as contrasted with the platinic compounds; as, platinous chloride (PtCl2).

The Scotch equivalent of the English word plowland. Not having one plowgate of land. Sir W. Scott.

taining, lead; -- used specifically to designate those compounds in which it has a higher valence as contrasted with plumbous compounds; as, plumbic oxide.

ntaining, lead; -- used specifically to designate those compounds in which it has a lower valence as contrasted with plumbic compounds.

A genus of gamopetalous perennial herbs, including the Jacob's ladder and the Greek valerian.

Having a valence greater than one. [Obs.]

n Athens, where Zeno, the philosopher, taught his disciples; hence, sometimes used as equivalent to the school of the Stoics. It was called "h poiki`lh stoa`. [See Poicile.]

ee Terrapin. Potter's asthma (Med.), emphysema of the lungs; -- so called because very prevalent among potters. Parkers. -- Potter's clay. See under Clay. -- Potter's field, a public burial place, especially in a city, for paupers, unknown persons, and criminals; -- so named from the field south of Jerusalem, mention…

A British denomination of money of account, equivalent to twenty shillings sterling, and equal in value to about $4.86. There is no coin known by this name, but the gold sovereign is of the same value.