Sec·ond·a·ry a.
 1. Succeeding next in order to the first; of second place, origin, rank, etc.; not primary; subordinate; not of the first order or rate.
    Wheresoever there is moral right on the one hand, no secondary right can discharge it.   --L'Estrange.
    Two are the radical differences; the secondary differences are as four.   --Bacon.
 2. Acting by deputation or delegated authority; as, the work of secondary hands.
 3. Chem. Possessing some quality, or having been subject to some operation (as substitution), in the second degree; as, a secondary salt, a secondary amine, etc. Cf. primary.
 4. Min. Subsequent in origin; -- said of minerals produced by alteration or deposition subsequent to the formation of the original rock mass; also of characters of minerals (as secondary cleavage, etc.) developed by pressure or other causes.
 5. Zool. Pertaining to the second joint of the wing of a bird.
 6. Med. (a) Dependent or consequent upon another disease; as, Bright's disease is often secondary to scarlet fever. (b) Occurring in the second stage of a disease; as, the secondary symptoms of syphilis.
 Secondary accent. See the Note under Accent, n., 1.
 Secondary age. Geol. The Mesozoic age, or age before the Tertiary. See Mesozoic, and Note under Age, n., 8.
 Secondary alcohol Chem., any one of a series of alcohols which contain the radical CH.OH united with two hydrocarbon radicals. On oxidation the secondary alcohols form ketones.
 Secondary amputation Surg., an amputation for injury, performed after the constitutional effects of the injury have subsided.
 Secondary axis Opt., any line which passes through the optical center of a lens but not through the centers of curvature, or, in the case of a mirror, which passes through the center of curvature but not through the center of the mirror.
 Secondary battery. Elec. See under Battery, n., 4.
 Secondary circle Geom. & Astron., a great circle that passes through the poles of another great circle and is therefore perpendicular to its plane.
 Secondary circuit, Secondary coil Elec., a circuit or coil in which a current is produced by the induction of a current in a neighboring circuit or coil called the primary circuit or coil.
 Secondary color, a color formed by mixing any two primary colors in equal proportions.
 Secondary coverts Zool., the longer coverts which overlie the basal part of the secondary quills of a bird. See Illust. under Bird.
 Secondary crystal Min., a crystal derived from one of the primary forms.
 Secondary current Elec., a momentary current induced in a closed circuit by a current of electricity passing through the same or a contiguous circuit at the beginning and also at the end of the passage of the primary current.
 Secondary evidence, that which is admitted upon failure to obtain the primary or best evidence.
 Secondary fever Med., a fever coming on in a disease after the subsidence of the fever with which the disease began, as the fever which attends the outbreak of the eruption in smallpox.
 Secondary hemorrhage Med., hemorrhage occuring from a wounded blood vessel at some considerable time after the original bleeding has ceased.
 Secondary planet. Astron. See the Note under Planet.
 Secondary qualities, those qualities of bodies which are not inseparable from them as such, but are dependent for their development and intensity on the organism of the percipient, such as color, taste, odor, etc.
 Secondary quills or Secondary remiges Zool., the quill feathers arising from the forearm of a bird and forming a row continuous with the primaries; -- called also secondaries. See Illust. of Bird.
 Secondary rocks or Secondary strata Geol., those lying between the Primary, or Paleozoic, and Tertiary (see Primary rocks, under Primary); -- later restricted to strata of the Mesozoic age, and at present but little used.
 Secondary syphilis Med., the second stage of syphilis, including the period from the first development of constitutional symptoms to the time when the bones and the internal organs become involved.
 Secondary tint, any subdued tint, as gray.
 Secondary union Surg., the union of wounds after suppuration; union by the second intention.
 Syn: -- Second; second-rate; subordinate; inferior.


 Bat·ter·y n.; pl. Batteries
 1. The act of battering or beating.
 2. Law The unlawful beating of another. It includes every willful, angry and violent, or negligent touching of another's person or clothes, or anything attached to his person or held by him.
 3. Mil. (a) Any place where cannon or mortars are mounted, for attack or defense. (b) Two or more pieces of artillery in the field. (c) A company or division of artillery, including the gunners, guns, horses, and all equipments. In the United States, a battery of flying artillery consists usually of six guns.
 Barbette battery. See Barbette.
 Battery d'enfilade, or Enfilading battery, one that sweeps the whole length of a line of troops or part of a work.
 Battery en écharpe, one that plays obliquely.
 Battery gun, a gun capable of firing a number of shots simultaneously or successively without stopping to load.
 Battery wagon, a wagon employed to transport the tools and materials for repair of the carriages, etc., of the battery.
 In battery, projecting, as a gun, into an embrasure or over a parapet in readiness for firing.
 Masked battery, a battery artificially concealed until required to open upon the enemy.
 Out of battery, or From battery, withdrawn, as a gun, to a position for loading.
 4. Elec. (a) A number of coated jars (Leyden jars) so connected that they may be charged and discharged simultaneously. (b) An apparatus for generating voltaic electricity.
 Note: ☞ In the trough battery, copper and zinc plates, connected in pairs, divide the trough into cells, which are filled with an acid or oxidizing liquid; the effect is exhibited when wires connected with the two end-plates are brought together. In Daniell's battery, the metals are zinc and copper, the former in dilute sulphuric acid, or a solution of sulphate of zinc, the latter in a saturated solution of sulphate of copper. A modification of this is the common gravity battery, so called from the automatic action of the two fluids, which are separated by their specific gravities. In Grove's battery, platinum is the metal used with zinc; two fluids are used, one of them in a porous cell surrounded by the other. In Bunsen's or the carbon battery, the carbon of gas coke is substituted for the platinum of Grove's. In Leclanché's battery, the elements are zinc in a solution of ammonium chloride, and gas carbon surrounded with manganese dioxide in a porous cell. A secondary battery is a battery which usually has the two plates of the same kind, generally of lead, in dilute sulphuric acid, and which, when traversed by an electric current, becomes charged, and is then capable of giving a current of itself for a time, owing to chemical changes produced by the charging current. A storage battery is a kind of secondary battery used for accumulating and storing the energy of electrical charges or currents, usually by means of chemical work done by them; an accumulator.
 5. A number of similar machines or devices in position; an apparatus consisting of a set of similar parts; as, a battery of boilers, of retorts, condensers, etc.
 6. Metallurgy A series of stamps operated by one motive power, for crushing ores containing the precious metals.
 7. The box in which the stamps for crushing ore play up and down.
 8. Baseball The pitcher and catcher together.

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