angle

angle /an·gle/ (ang´g'l)

1. the point at which two intersecting borders or surfaces converge.

Scapula, showing the lateral, superior, and inferior angles.

2. the degree of divergence of two intersecting lines or planes.

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acromial angle  the subcutaneous bony point at which the lateral border becomes continuous with the spine of the scapula.

axial angle  any line angle parallel with the long axis of a tooth.

cardiodiaphragmatic angle  that formed by the junction of the shadows of the heart and diaphragm in posteroanterior radiographs of the chest.

costovertebral angle  that formed on either side of the vertebral column between the last rib and the lumbar vertebrae.

angle of eye  canthus.

filtration angle  a narrow recess between the sclerocorneal junction and the attached margin of the iris, at the periphery of the anterior chamber of the eye; it is the principal exit site for the aqueous fluid.

iridial angle , iridocorneal angle, angle of iris filtration a.

line angle  an angle formed by the junction of two planes; in dentistry, the junction of two surfaces of a tooth or of two walls of a tooth cavity.

Louis' angle , Ludwig's angle sternal a.

optic angle  visual a.

point angle  one formed by the junction of three planes; in dentistry, the junction of three surfaces of a tooth, or of three walls of a tooth cavity.

angle of pubis  subpubic a.

sternal angle  the angle between the sternum and manubrium.

subpubic angle  that formed by the conjoined rami of the ischial and pubic bones.

tooth angles  those formed by two or more tooth surfaces.

venous angle  the angle formed by junction of the internal jugular and subclavian veins.

visual angle  the angle formed between two lines extending from the nodal point of the eye to the extremities of the object seen.

Y angle  that between the radius fixus and the line joining the lambda and inion.

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an·gle (nggl)

n.

The figure or space formed by the junction of two lines or planes.

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angle,

n the divergence of two lines or planes from a common point of origin.

angle of the sacrum, inferior lateral,

n the point on the lateral surface of the sacrum as it curves toward the middle of the fifth sacral vertebra.

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angle,

n the degree of divergence of two or more lines or planes that meet each other; the space between such lines. Measured in degrees of an arc.

angle, bayonet former,

n a hoe-shaped, paired cutting instrument; biangled with the blade parallel with the axis of the shaft. The cutting edge is not perpendicular to the axis of the blade. Used to accentuate angles in an “invisible” class 3 cavity.

angle, Bennett,

n the angle formed by the sagittal plane and the path of the advancing condyle during lateral mandibular movement, as viewed in the horizontal plane.

angle board,

n a device used to facilitate the establishment of reproducible angular relationships between a patient's head, the radiographic beam, and the radiograph film.

angle, cavosurface

n the angle in a prepared cavity, formed by the junction of the wall of the cavity with the surface of the tooth.

angle, contact,

n the angle at which a liquid or vapor meets a solid surface; e.g., the angle at which a droplet of water rests on an oily surface.

angle, cranial base,

n the angle formed by a line representing the floor of the anterior cranial fossa intersecting a line representing the axis of the clivus of the base of the skull.

angle, cusp,

n 1. the angle made by the slopes of a cusp with the plane that passes through the tip of the cusp and is perpendicular to a line bisecting the cusp; measured mesiodistally or buccolingually. Half of the included angle between the buccolingual or mesiodistal cusp inclines.
n 2. the angle made by the slopes of a cusp with a perpendicular line bisecting the cusp; measured mesiodistally or buccolingually.

angle, facial,

n an anthropometric expression of the degree of protrusion of the lower face, assessed by measuring the inclination of the facial plane relative to a horizontal reference plane.

angle, former,

n a paired, hoe-shaped cutting instrument that has the cutting edge at an angle other than a right angle in relation to the axis of the blade.

angle, Frankfort-mandibular incisor (FMIA)

n a measure of the mandibular incisor to the Frankfort horizontal plane.

n the degree of slope between the axis-orbital plane and the palatal discluding skidway of the maxillary incisor.

angle, incisal guidance,

n the angle formed with the occlusal plane by drawing a line in the sagittal plane between the incisal edges of the maxillary and mandibular central incisors when the teeth are in centric occlusion.

angle, incisal guide,

n the inclination of the incisal guide on the articulator.

angle, lateral incisal guide,

n the inclination of the incisal guide in the frontal plane.

angle, line,

n an angle formed by the junction of the two walls along a line; designated by combining the names of the walls forming the angle.

angle, occlusal rest,

n the angle formed by the occlusal rest with the upright minor connector.

angle of mandible,

n an angle at the intersection of the posterior and inferior borders of the ramus.

angle, point,

n an angle formed by the junction of three walls at a common point; designated by combining the names of the walls forming the angle.

angle, prophylaxis

n the term for an angled instrument that holds a rubber cup or bristle brush used to polish teeth. It may be either contra- or right-angled. May also be called a
prophy angle.

angle, protrusive incisional guide,

n the inclination of the incisal guide in the sagittal plane.

angle, rest,

n See angle, occlusal rest.

angle, symphyseal

n the angle of the chin, which may be protruding straight or receding, according to type.

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angle

the space or figure formed by two diverging lines, measured as the number of degrees one would have to be moved to coincide with the other.

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cardiodiaphragmatic angle

that formed by the junction of the shadows of the heart and diaphragm in radiographs.

costovertebral angle

the angle formed on either side of the vertebral column between the last rib and the lumbar vertebrae.

filtration angle

the angle between the iris and cornea at the periphery of the anterior chamber of the eye, through which the aqueous humor readily permeates. Called also angle of the iris.

glenoid angle

the angle of the scapula at the glenoid cavity, or ventral end, of the bone. The cranial and caudal angles are at the dorsal border of the scapula.

angle of inclination

see cervicofemoral angle.

angle of jaw

the junction of the ventral and caudal borders of the lower jaw.

nasofrontal angle

see stop.

oral lip angle

angle of union of the oral lips. Called also commissura labiorum.

sole angle

the angle formed by the inflection of the wall of the hoof to form the bars on the sole of the horse's foot. Called also angulus soleae medialis, lateralis.