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to the product of one complete convolution (of a coiled conductor) into one ampère of current; thus, a conductor having five convolutions and carrying a current of half an ampère is said to have 2½ ampère turns. The magnetizing effect of a coil is proportional to the number of its ampère turns.

The unit of electric current; -- defined by the International Electrical Congress in 1893 and by U. S. Statute as, one tenth of the unit of current of the C. G. S. system of electro-magnetic units, or the practical equivalent of the unvarying current which, when passed through a standard solution of nitrate of silver i…

An instrument for measuring the strength of an electrical current in ampères.

to an Attic festival at the naming of a child; -- so called because the friends of the parents carried the child around the hearth and then named it.

Relating to both parents. [R.]

A nonsense verse; a rigmarole, with apparent meaning, which on further attention proves to be meaningless. [Written also amphigouri.]

ock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.

ries. The colorless, volatile, mobile liquid commonly called amylene is a mixture of different members of the group.

, amyl; as, amylic ether. Amylic alcohol (Chem.), one of the series of alcohols, a transparent, colorless liquid, having a peculiar odor. It is the hydroxide of amyl. -- Amylic fermentation (Chem.), a process of fermentation in starch or sugar in which amylic alcohol is produced. Gregory.

An organ which is equivalent in its functions to a different organ in another species or group, or even in the same group; as, the gill of a fish is the analogue of a lung in a quadruped, although the two are not of like structural relations.

ween things in some circumstances or effects, when the things are otherwise entirely different. Thus, learning enlightens the mind, because it is to the mind what light is to the eye, enabling it to discover things before hidden.

ists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.

The art of dissecting, or artificially separating the different parts of any organized body, to discover their situation, structure, and economy; dissection.

e ovule inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous. Gray.

Having perfect and staminate flowers on different plants. -- An`dro*di*o"cism, -di*e"cism (#), n.

bility of a nerve in the region of the positive electrode or anode on the passage of a current of electricity through it. Foster.

A small gold coin formerly current in England; a half angel. Eng. Cyc.

le between the chord of an aërocurve and the relative direction of the undisturbed air current.

A native sulphate of lead. It occurs in white or yellowish transparent, prismatic crystals.

imes intermediate groupings, all in regular subordination, but variously arranged by different writers.