#angle the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians
exclusion: width height length circumference diameter surface_area volume thickness tenuity
supertype: spatial_characteristic__spatialcharacteristic (menu) this category is mainly for menu-generation purposes
subtype: crotch__fork the angle formed by the inner sides of the legs where they join the human trunk
subtype: axil the upper angle between an axis and an offshoot such as a branch or leafstalk
subtype: helix_angle__helixangle the constant angle at which a helix cuts the elements of a cylinder or cone
subtype: angular_distance__angulardistance the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars"
subtype: latitude the angular distance between an imaginary line around a heavenly body parallel to its equator and the equator itself
subtype: declination__celestial_latitude__celestiallatitude__DEC (astronomy) the angular distance to a point on a celestial object measured north or south from the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
subtype: RA__right_ascension__celestial_longitude__celestiallongitude (astronomy) the angular distance eastward along the celestial equator from the vernal equinox to the intersection of the hour circle that passes through the body; expressed in hours and minutes and second; used with declination to specify positions on the celestial sphere; "one hour of right ascension equals fifteen degrees"
subtype: HA__hour_angle (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
subtype: true_anomaly the angular distance of a point in an orbit past the point of periapsis measured in degrees
subtype: plane_angle__planeangle an angle formed by two straight lines (in the same plane)
subtype: spherical_angle an angle formed at the intersection of the arcs of two great circles
subtype: solid_angle an angle formed by three or more planes intersecting at a common point (the vertex)
subtype: angle_of_inclination__inclination (geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
subtype: inclination_of_an_orbit__inclination (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
subtype: salient_angle__salientangle an angle pointing outward; an interior angle of a polygon that is less than 180 degrees
subtype: interior_angle__internal_angle the angle inside two adjacent sides of a polygon
subtype: reentrant_angle__reentrantangle__reentering_angle an interior angle of a polygon that is greater than 180 degrees
subtype: exterior_angle__external_angle the supplement of an interior angle of a polygon
subtype: angle_of_incidence__incidence_angle__incidenceangle the angle that a line makes with a line perpendicular to the surface at the point of incidence
subtype: angle_of_attack the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
subtype: critical_angle the smallest angle of incidence for which light is totally reflected
subtype: angle_of_reflection the angle between a reflected ray and a line perpendicular to the reflecting surface at the point of incidence
subtype: angle_of_refraction the angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction
subtype: angle_of_extinction__extinction_angle the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light
subtype: dogleg.angle angle that resembles the hind leg of a dog
subtype: right_angle__rightangle the 90 degree angle between two perpendicular lines
subtype: oblique_angle__obliqueangle an angle that is not a right angle or a multiple of a right angle
subtype: acute_angle__acuteangle an angle less than 90 degrees but more than 0 degrees
subtype: obtuse_angle an angle between 90 and 180 degrees
subtype: reflex_angle an angle greater than 180 degrees (but less than 360)
subtype: perigon__round_angle__roundangle an angle of 360 degrees
subtype: cutting_angle__cuttingangle the angle between the face of a cutting tool and the surface of the work
subtype: angle_of_dip__dip__magnetic_dip__magnetic_inclination__inclination (physics) the angle that a magnetic needle makes with the plane of the horizon
subtype: lead.angle the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile)
subtype: magnetic_declination__magnetic_variation the angle (at a particular location) between magnetic north and true north
subtype: azimuth__AZ the azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian
subtype: polyhedral_angle the space enclosed by three or more planes that intersect in a vertex
subtype: face_angle the angle formed by two edges of a polyhedral angle
subtype: tilt_angle the angle a rocket makes with the vertical as it curves along its trajectory
subtype: vertical_angle either of two equal and opposite angles formed by the intersection of two straight lines
subtype: view_angle__angle_of_view the angle included by a photographic lens
subtype: wave_angle the angle of arrival (or departure) of a radio wave with respect to the axis of an antenna array
subtype: angular_unit__angularunit a unit of measurement for angles
subtype: mil.angular_unit an angular unit used in artillery; equal to 1/6400 of a complete revolution
subtype: arcdegree__degree a measure for arcs and angles; "there are 360 degrees in a circle"
subtype: arcsecond__second a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here"
subtype: minute_of_arc__minute__arcminute a unit of angular distance equal to a 60th of a degree
subtype: microradian a unit of angular distance equal to one thousandth of a milliradian
subtype: milliradian a unit of angular distance equal to one thousandth of a radian
subtype: radian__rad the unit of plane angle adopted under the System International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
subtype: grad__grade one-hundredth of a right angle
subtype: oxtant a unit of angular distance equal to half a quadrant
subtype: sextant.angular_unit a unit of angular distance equal to 60 degrees
subtype: quadrant.angular_unit__right_angle__rightangle a quarter of the circumference of a circle
subtype: straight_angle an angle of 180 degrees
subtype: steradian__sr the unit of solid angle adopted under the System International d'Unites
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