Part 57

An`a*seis"mic (?), a. [Cf. Gr. &?; a shaking up and down.] Moving up and down; -- said of earthquake shocks.

An*as`tig*mat"ic (?), a. [Pref. an- not + astigmatic.] (Optics) Not astigmatic; -- said esp. of a lens system which consists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.

A*nas"to*mose (?), v. i. Of any channels or lines, to meet and unite or run into each other, as rivers; to coalesce; to interjoin.

An"chor es*cape"ment. (Horol.) (a) The common recoil escapement. (b) A variety of the lever escapement with a wide impulse pin.

Anchor light. (Naut.) The lantern shown at night by a vessel at anchor. International rules of the road require vessels at anchor to carry from sunset to sunrise a single white light forward if under 150 feet in length, and if longer, two such lights, one near the stern and one forward.

Anchor shot. (Billiards) A shot made with the object balls in an anchor space.

Anchor space. (Billiards) In the balk-line game, any of eight spaces, 7 inches by 3½, lying along a cushion and bisected transversely by a balk line. Object balls in an anchor space are treated as in balk.

Anchor watch. (Naut.) A detail of one or more men who keep watch on deck at night when a vessel is at anchor.

An"cil*la*ry ad*min`is*tra"tion. (Law) An administration subordinate to, and in aid of, the primary or principal administration of an estate.

An`dro*ceph"a*lous (?), a. [Gr. &?;, &?;, man + &?; head.] Having a human head (upon an animal's body), as the Egyptian sphinx.

{ An`dro*di*œ"cious, -di*e"cious (?) }, a. [Gr. &?;, &?;, man + E. diœcious.] (Bot.) Having perfect and staminate flowers on different plants. -- An`dro*di*œ"cism, -di*e"cism (#), n.

{ An"dro*mede (?), An"dro*med (?) }, n.} (Astron.) A meteor appearing to radiate from a point in the constellation Andromeda, -- whence the name.

A shower of these meteors takes place every year on November 27th or 28th. The Andromedes are also called Bielids, as they are connected with Biela's comet and move in its orbit.

||An`dro*po"gon (?), n. [NL.; Gr. 'anh`r, 'andro`s, man + pw`gwn the beard.] (Bot.) A very large and important genus of grasses, found in nearly all parts of the world. It includes the lemon grass of Ceylon and the beard grass, or broom sedge, of the United States. The principal subgenus is Sorghum, including A. sorghum and A. halepensis, from which have been derived the Chinese sugar cane, the Johnson grass, the Aleppo grass, the broom corn, and the durra, or Indian millet. Several East Indian species, as A. nardus and A. schœnanthus, yield fragrant oils, used in perfumery.

||An`e*mo"sis (?), n. [NL., fr. Gr.&?; wind.] A condition in the wood of some trees in which the rings are separated, as some suppose, by the action of high winds upon the trunk; wind shake.

{ ||An*er"gi*a , An"er*gy (?), } n. [NL. anergia, fr. Gr. &?;- not + &?; work.] Lack of energy; inactivity. -- An*er"gic (#), a.

||An`gi*o"ma (?), n.; L. pl. -omata (#). [NL.; angio- + -oma.] (Med.) A tumor composed chiefly of dilated blood or lymph vessels. -- An`gi*om"a*tous (#), a.

||An`gi*o*neu*ro"sis (?), n. [NL.; angio- + neurosis.] (Med.) Any disorder of the vasomotor system; neurosis of a blood vessel. -- An`gi*o*neu*rot"ic (#), a.

An`gi*op"a*thy (?), n. [Angio- + Gr. &?; disease.] (Med.) Disease of the vessels, esp. the blood vessels.

An"gle of en"try. (Aëronautics) The angle between the tangent to the advancing edge (of an aërocurve) and the line of motion; -- contrasted with angle of trail, which is the angle between the tangent to the following edge and the line of motion.

Angle of incidence. (Aëronautics) The angle between the chord of an aërocurve and the relative direction of the undisturbed air current.

An"glo-Ca*thol"i*cism (?), n. The belief of those in the Church of England who accept many doctrines and practices which they maintain were those of the primitive, or true, Catholic Church, of which they consider the Church of England to be the lineal descendant.

An*gus"ti*clave (n*gs"t*klv), n. [L. angustus narrow + clavus a nail, a stripe.] (Rom. Antiq.) A narrow stripe of purple worn by the equites on each side of the tunic as a sign of rank.

An"i*lin*ism (?), n. [Aniline + -ism.] (Med.) A disease due to inhaling the poisonous fumes present in the manufacture of aniline.

An`i*mal"cu*lism (?), n. (Biol.) The theory that the spermatozoön and not the ovum contains the whole of the embryo; spermatism; -- opposed to ovism.

||An`i*so*co"ri*a (?), n. [NL., fr. Gr. &?; + &?; pupil.] (Med.) Inequality of the pupils of the eye.

An"i*sol (?), n. [Anisic + - ol.] (Chem.) Methyl phenyl ether, C6H5OCH3, got by distilling anisic acid or by the action of methide on potassium phenolate.

||An`i*so*me*tro"pi*a (?), n. [NL., fr. Gr. &?; + &?; measure + &?;, &?;, eye.] Unequal refractive power in the two eyes.