Webster's Unabridged Dictionary (2nd 100 Pages). Noah Webster

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СКАЧАТЬ the nature of an axiom; selfÐevident; characterized by axioms. ½Axiomatical truth.¸

       Johnson.

       The stores of axiomatic wisdom.

       I. Taylor.

       Ax·iÏoÏmat¶icÏalÏly, adv. By the use of axioms; in the form of an axiom.

       Ø Ax¶is (?), n. [L.] (Zo”l.) The spotted deer (Cervus axis or Axis maculata) of India, where it is called hog deer and parrah (Moorish name).

       Ax¶is (?), n.; pl. Axes (?). [L. axis axis, axle. See Axle.] 1. A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are symmetrically arranged.

       2. (Math.) A straight line with respect to which the different parts of a magnitude are symmetrically arranged; as, the axis of a cylinder, i.e., the axis of a cone, that is, the straight line joining the vertex and the center of the base; the axis of a circle, any straight line passing through the center.

       3. (Bot.) The stem; the central part, or longitudinal support, on which organs or parts are arranged; the central line of any body.

       Gray.

       4. (Anat.) (a) The second vertebra of the neck, or vertebra dentata. (b) Also used of the body only of the vertebra, which is prolonged anteriorly within the foramen of the first vertebra or atlas, so as to form the odontoid process or peg which serves as a pivot for the atlas and head to turn upon.

       5. (Crystallog.) One of several imaginary lines, assumed in describing the position of the planes by which a crystal is bounded.

       6. (Fine Arts) The primary of secondary central line of any design.

       Anticlinal axis (Geol.), a line or ridge from which the strata slope downward on the two opposite sides. Ð Synclinal axis, a line from which the strata slope upward in opposite directions, so as to form a valley. Ð Axis cylinder (Anat.), the neuraxis or essential, central substance of a nerve fiber; Ð called also axis band, axial fiber, and cylinder axis. Ð Axis in peritrochio, the wheel and axle, one of the mechanical powers. Ð Axis of a curve (Geom.), a straight line which bisects a system of parallel chords of a curve; called a principal axis, when cutting them at right angles, in which case it divides the curve into two symmetrical

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      portions, as in the parabola, which has one such axis, the ellipse, which has two, or the circle, which has an infinite number. The two axes of the ellipse are the major axis and the minor axis, and the two axes of the hyperbola are the transverse axis and the conjugate axis. Ð Axis of a lens, the straight line passing through its center and perpendicular to its surfaces. Ð Axis of a telescope or microscope, the straight line with which coincide the axes of the several lenses which compose it. Ð Axes of co”rdinates in a plane, to straight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. Ð Axes of co”rdinates in space, the three straight lines in which the co”rdinate planes intersect each other. Ð Axis of a balance, that line about which it turns. Ð Axis of oscillation, of a pendulum, a right line passing through the center about which it vibrates, and perpendicular to the plane of vibration. Ð Axis of polarization, the central line around which the prismatic rings or curves are arranged. Brewster. Ð Axis of revolution (Descriptive Geom.), a straight line about which some line or plane is revolved, so that the several points of the line or plane shall describe circles with their centers in the fixed line, and their planes perpendicular to it, the line describing a surface of revolution, and the plane a solid of revolution. Ð Axis of symmetry (Geom.), any line in a plane figure which divides the figure into two such parts that one part, when folded over along the axis, shall coincide with the other part. Ð Axis of the equator, ecliptic, horizon (or other circle considered with reference to the sphere on which it lies), the diameter of the sphere which is perpendicular to the plane of the circle. Hutton. Ð Axis of the Ionic capital (Arch.), a line passing perpendicularly through the middle of the eye of the volute. Ð Neutral axis (Mech.), the line of demarcation between the horizontal elastic forces of tension and compression, exerted by the fibers in any cross section of a girder. Ð Optic ~ of a crystal, the direction in which a ray of transmitted light suffers no double refraction. All crystals, not of the isometric system, are either uniaxial or biaxial. Ð Optic ~, Visual ~ (Opt.), the straight line passing through the center of the pupil, and perpendicular to the surface of the eye. Ð Radical ~ of two circles (Geom.), the straight line perpendicular to the line joining their centers and such that the tangents from any point of it to the two circles shall be equal to each other. Ð Spiral ~ (Arch.), the ~ of a twisted column drawn spirally in order to trace the circumvolutions without. Ð Axis of abscissas and Axis of ordinates. See Abscissa. Ax¶le (?), n. [OE. axel, exel, shoulder, AS. ?axl; akin to AS. eax axle, Sw. & Dan. axel shoulder, ~, G. achse axle, achsel shoulder, L. axis axle, Gr. ?, Skr. aksha, L. axillaÿshoulder joint: cf. F. essieu, axle, OF. aissel, fr. dim. of L. axis. ?. Cf. 2d Axis.] 1. The pin or spindle on which a wheel revolves, or which revolves with a wheel. 2. A transverse bar or shaft connecting the opposite wheels of a car or carriage; an axletree. 3. An axis; as, the sun's axle. Had from her axle torn The steadfast earth. Milton. µ Railway axles are called leading and trailing from their position in the front or in the rear of a car or truck respectively. Ax¶le box· (?). 1. A bushing in the hub of a wheel, through which the axle passes. 2. The journal box of a rotating axle, especially a railway axle. µ In railway construction, the axle guard, or pedestal, with the superincumbent weight, rests on the top of the box (usually with a spring intervening), and holds it in place by flanges. The box rests upon the journal bearing and key, which intervene between the inner top of the box and the axle. Ax¶led (?), a. Having an axle; Ð used in composition. Merlin's agateÐaxled car. T. Warton. Ax¶le guard· (?). The part of the framing of a railway car or truck, by which an axle box is held laterally, and in which it may move vertically; Ð also called a jaw in the United States, and a housing in England. Ax¶leÏtree· (?), n. [Cf. Icel. ”xultr?.] 1. A bar or beam of wood or iron, connecting the opposite wheels of a carriage, on the ends of which the wheels revolve. 2. A spindle or axle of a wheel. [Obs.] Ax¶man (?), n.; pl. Axmen (?). One who wields an ax. Ax¶min·ster (?), n. An ÷ carpet, ?n imitation Turkey carpet, noted for its thick and soft pile; Ð so called from Axminster, Eng. Ø Ax¶oÏlotl (?), n. [The native name.] (Zo”l.) An amphibian of the salamander tribe found in the elevated lakes of Mexico; the siredon. µ When it breeds in captivity the young develop into true salamanders of the genus Amblystoma. This also occurs naturally under favorable conditions, in its native localities; although it commonly lives and breeds in a larval state, with persistent external gills. See Siredon. Ax¶stone· (?), n. (Min.) A variety of jade. It is used by some savages, particularly the natives of the South Sea Islands, for making axes or hatchets. Ax¶tree (?), n. Axle or axletree. [Obs.] Drayton. Ax¶unge (?), n. [F. axonge, L. axungia; axis wheel + ungere to grease.] Fat; grease; esp. the fat of pigs or geese; usually (Pharm.), lard prepared for medical use. Ay (?), interj. Ah! alas! ½Ay me! I fondly dream ? Had ye been there.'¸ Milton. Ay (?), adv. Same as Aye. Ø A¶yah (?), n. [Pg. aia, akin to Sp. aya a governess, ayo a tutor.] A native nurse for children; also, a lady's maid. [India] Aye, Ay } (?), adv. [Perh. a modification of yea, or from the interjection of admiration or astonishment, OE. ei, ey, why, hey, ay, well, ah, ha. Cf. MHG. & G. ei, Dan. ej. Or perh. akin to aye ever.] Yes; yea; Ð a word expressing assent, or an affirmative answer to a question. It is much used in viva voce voting in legislative bodies, etc. µ This word is written I in the early editions of Shakespeare and other old writers. Aye (?), n. An affirmative vote; one who votes in the affirmative; as,½To call for the ayes and noes;¸ ½The ayes have it.¸ Aye, Ay } (?), adv. [Icel. ei, ey; akin to AS. ¾,¾wa, always, Goth. aiws an age, Icel. ‘fi, OHG, ?wa, L. aevum, Gr. ? an age, ?, ?, ever, always, G. je, Skr. ?va course. ?,?. Cf. Age, v., Either, a., Or, conj.] Always; ever; continually; for an indefinite time. For his mercies aye endure. Milton. For aye, always; forever; eternally. Aye¶Ðaye· (?), n. [From the native name, prob. from its cry.] (Zo”l.) СКАЧАТЬ