THE AXIS OF THE PELVIS

SHOWN ON A PLASTER CAST. (FROM LUSK, AFTER HODGE.) O, no; 0%, not; O03, whole; Th, thin; Th?, the; U, like oo in too; U3, blue; U3, lull; U4, full; U8, urn; US, like ü (German). fibres) and the absence of buds and leaves. [B, 34.]—Eleetric a. A line connecting the two poles of a body po e ing electrical properties. [L,159.]-Erect a. Lat.,a.erect us. Ger., aufrechte Achse. It., a e eretto. In botany, an ascending a. that rises perpendicularly from the ground. [B,34.|—Excurrent a. Lat.,a.excurrens. In botany, an ascending a. in which the growth takes place chietly at the top, and the plant a umes a pyramidal or elongated form. as in the spruce. [B, 34.]—Flower-a. That portion of the a. of a plant which bears the flower; comprising the pedicel and receptacle, bearing the bracts, janth, and male and female organs of the flower. [B, 75.]—-Hæmal a. See Aorra.—Horizontal a. Fr., axe horizontal. Ger., horizon tale Achse, Querachse, It., a e orizzontale, Sp. eje horizontal. In ophthalmology, a line drawn in a horizontal plane and perpendicular to both the antero-posterior and vertical axes of the eyeball, and pa ing through its geometrical centre. [F.]—H, pocotyedsnauy a. Fr., axe hypocotyl. Irmisch’s term for that portion of the a. of the embryo of a plant which is situated below the cotyledons, [B, 121.|—Indefinite a. Fr., axe indéfini. A plant a. which continues to grow at its apex, and not solely by axillary offshoots, The secondary axes also continue to grow indefinitely at the apex, and the flowers spring from the axils of leaves and are not terminal. [B, 121.]—Intra-muscu- Jar a.-cylinder. Thea.-cylinder of a nerve after it has penetrated the sarcolemma of the muscle to which it is distributed. [J, 35.]— Lateral a. Fr., axe latéral. Ger., seittiche Achse. It.. a e laterale. A lateral outgrowth from the main a., or stem, of a plant; a shoot or petiole springing from a stem. [B, 167.]—Longitudinal a. Fr., axe longitudinal. Ger., Längsachse. It., a e longitudi. nale, According to Sachs, the a. of growth. but it should be restricted to the latter when it is actually longitudinal, as it usually is. [B, 121, 16i._—Macrodiagonal a. In crystals of the rhombic and the triclinic systems, the longer of the two secondary axes. [B, 3.] See A. of crystallization.—Magne-erystallie a. That line of a crystal which, when the latter is suspended between two magnets, tends to become parallel to the magnetic a. (Faraday (B, 140).|— Magnetic a. Fr.,are magnétique. Ger., magnet is che Achse. It. a e mügnetico. Sp., eje magnético. The a. of a magnet; a line connecting its two poles. [B.]—Material a. Fr., axe matériel. Ger., materielle Achse. An a. which has a material representative; à central core or portion which follows the line of the a., asin a fruit. [B.]—Naked a.-cylinder. Fr., axe nu, fibres à myéline nus. Ger.,nackter Ach sen cylinder. A simple, or bare, a.-cylinder; one without either the primitive sheath (neurilemma) or the myelinic sheath. This is the condition of an a.-cylinder as it originates in the a.-cylinder proce of a ganglion cell of the central nervous system. and also near its termination: [J,32,35.]—Neural a. See ‘erebro-spinal a.—Notochordal a. NoTOCHORD.—Optic a., Optical a. Lat., a. optic us. Fr., axe optique. Ger., optische -Achse. It., a e ottico. Sp., eje éptico. 1. Of a crystal, the line along which a ray pa es without undergoing double refraction. In crystals of the hexagonal and quadratic systems, there is only one optical a., which coincides with the principal a. of the crystal, and the crystal is then said to be uniaxial. In crystals of the rhombic, monoclinic, and triclinic systems, there are two optical axes, and the crystal is said to be biaxial.’ [B, 3, 21, 270.) 2. Of alens or a mirror, a line pa ing through its centre of figure. [B.] See Principal a. and Secondary axes. 3. Of the eye, an imaginary line drawn from the centre of the cornea to a point midway between the macula lutea and the optic disc; the antero-posterior a. of the eye. [F.|—Orthodiagonal a. In crystals of the monoclinic s, tem, that secondary a. which is at right angles to the principal a. [B.3.) See A. of crystallization.—Pelvic a. See A. of the pelvis. —Primary a. Lat., a. primarius. Fr., axe primaire. Ger., Hauptachse. Ît., a e primario. 1. Of a crystal, see A. of crystal. lization. 2. In botany, the central trunk, or stem, of a plant; ina raceme or spike, the main rhachis, from which the lateral rhachides, or peduncles, spring. [B, 198.] 3. In zoology, an imaginary line drawn from the mouth, in certain animals, straight through the digestive ca’ {L, 176.]—Principal a. 1. Of a crystal, see A. of crystallization. 2. In optics, a line pa ing through the centre of a lens or mirror and the centre of curvature of the surface of which the lenticular or specular surface is a segment. [B.]—Procumbent a., Prostrate a. Lat., a. procumbens. Fr., axe pro com bant. Ger., niederliegende (oder hiugestreckte) Achse. In botany, an ascending a. growing upon the ground. [B, 31.—Secondary axes. Lat., axes secundarii. Fr., axes second a ires. Ger. sekundäre Achsen, NWebenachsen, optische Nebenachsen (2d def.). It., a i second a riz. 1. In erystallograph, see À. of crystallization, 2. ines which pa through the centre of a lens or lique to the principal a. [B.] 3. In botany, the primary branches springing from the main trunk, or stem; in a raceme or spike, the secondary rhachides springing from the main rhachis. [B, 198.] 4. In zoology, lines, whether dor so-ventral or transverse, that are perpendicular to the primary a. [L, Nola Simple a.-cylinder. Naked a.-cylinder.—Solid a. A solid chitinous rod found in the hydrosoma of certain Hydrozoa. [L, 147.] —Solvent a. Lat.,a. solvens, It., a e solvente. In botany, an ascending a. in which the lateral is more marked than the vertical growth; opposed to excurrent a. [B, 34.]—Spinal a. In embryology, the notochord (g. v.). [L, 146.—Stem-a. The main a., or stem, of a plant; its primary a. [B, 167.]—Tertiary axes. N axes tertiarii. Fr., axes tertia ires, Ger..tertidire Achsen. It., a t tertiarii. The secondary branchlets, buds. or other offshoots springing from the secondary axes; ina raceme or spike, tertiary rhachides, springing from the secondary rhachides(axes). [B, 198.)—Thoracic a. e occasional common trunk of the snperior thoracic and acromiothoracic arteries. [L, 142.]—Thyreoid a. Lat., a. thyreoideus, Fr., axe thyréoïdien. A branch of the first part of the subclavian artery, aris i ng close to the inner side of the scalenus antic us muscle; two or three lines from its origin, it divides into the ascending thyreoid, the supra scapular, and the transverse cervical or superficial cervical arteries, [L,14.]—Trailing a. See Procumbent a.—Uterine a. See A. uteri—Vertical a. Fr., axe vertical. Ger., vertikale Achse.~ It., a e verticale. Sp., eje vertical. In ophthalmology, à line drawn pecnend etlarly to the optical a. of the eye, in a plane parallel with the median plane of the body, and through the agit ye centre of the eye. |F.]—Visual a. Fr., are visuel, igne visuelle, Ger., Sehachse. It., a e visuale (0 visivo). Sp. ee visual, Syn.: visual line. An imaginary line drawn from a int Jooxed at through the nodal point of the eye to the macula ute a. [F. - AXIS (Ar.), n. The Cannabis sativa. [B, 121.] AXNEC (Ar.),n. A general name for the mo es. [B, 121.] AXOCUILLIN, n. A Mexican popular name for axin (q. v.).