# inclination

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## inclination,

in astronomy, the angle of intersection between two planes, one of which is an orbital plane. The inclination of the plane of the moon's orbit is 5°9' with respect to the plane of the ecliptic (the plane of the earth's orbit around the sun). The inclination of the plane of the ecliptic relative to the plane of the earth's equator is 23°27'8.26"; this angle is called the obliquity of the ecliptic.

## inclination

1. Symbol: i . The angle between the orbital plane of a celestial body and a reference plane. For a planet or comet the reference plane is the plane of the ecliptic, for a satellite it is the primary's equatorial plane, and for a double star it is the plane of the sky. Inclination is one of the orbital elements and varies between 0 and 180°, being less than 90° for a body with direct motion.
2. (axial inclination) The angle between the rotational axis of a body and a line perpendicular to its orbital plane. See also Tables 1–3, backmatter.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

## Inclination

(religion, spiritualism, and occult)

An inclination is the angle at which two planes cross. In astrology, it is used to refer to the movement of a celestial body to a position other than the one occupied at birth.

## inclination

[‚iŋ·klə′nā·shən]
(geology)
The angle at which a geological body or surface deviates from the horizontal or vertical; often used synonymously with dip.
(geophysics)
In magnetic inclination, the dip angle of the earth's magnetic field. Also known as magnetic dip.
(mathematics)
The inclination of a line in a plane is the angle made with the positive x axis.
The inclination of a line in space with respect to a plane is the smaller angle the line makes with its orthogonal projection in the plane.
The inclination of a plane with respect to a given plane is the smaller of the dihedral angles which it makes with the given plane.
(science and technology)
Angular deviation of a direction or surface from the true vertical or horizontal.
The angle which a direction or surface makes with the vertical or horizontal.
A surface which deviates from the vertical or horizontal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## inclination

The angle which a line or surface makes with the vertical, horizontal, or with another line or surface.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

## inclination

As it pertains to meteorology, the angle between an isobar and the wind or airflow at a given point.

## inclination

1. Maths
a. the angle between a line on a graph and the positive limb of the x-axis
b. the smaller dihedral angle between one plane and another
2. Astronomy the angle between the plane of the orbit of a planet or comet and another plane, usually that of the ecliptic
3. Physics another name for dip
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Sacral inclination angle (o)a###45.62+-5.27 (32-57)###48.83+-6.71 (37-70)###0.007*
For example, for the inclination angles [sigma] of 2.7[degrees] and 4.0[degrees], the corresponding preference values are 1.0 and 0.74.
Influence of workpiece inclination angle on the surface roughness in ball end milling of the titanium alloy Ti-6Al-4V.
It can be seen in Figure 6 that the peak value near the location where r/R = -1 increases as the inclination angle increases, while it becomes weakened near the r/R = 0.8 and the inclination angles will affect the typical distributions in some degree.
In the equation, [P.sub.i] is the motor power, m is the quality of "follower", [[alpha].sub.i] and [[beta].sub.i] are the attack angle and sideslip angle, respectively, [[theta].sub.mi] is the trajectory inclination angle, and g is the gravitational acceleration.
The forward acceleration is approximately zero (linear forward walking), then we can eliminate the external accelerations by summing the accelerometer output in each axis within each walking step, and the inclination angle with respect to the ground can be calculated using (7).
Xue and Qu  experimentally examined the effects of inclination angles to ammonia heat pipe and observed the thermal resistance increment or decrement.
[[beta].sub.m]: The inclination angle of the bedding when the sample uniaxial compressive strength is minimum
Caption: Figure 15: The relationship curves between the ground maximum absolute inclination angle and the fault dip angle.
When the excavation scales of the same particle size are the same, the inclination angle of the inclined surface becomes smaller, which is consistent with the excavation law of 1 m x 1 m in the lower left part.
Metgud et al (2016) , in a study on 30 participants with low back pain, while assessing the effect of body mass index, central obesity and core muscle activation on spinopelvic parameters, found that there is weak core muscle activation in them, which in turn leads to an increase in lumbosacral and pelvic inclination angle. Pate et al (1991),  have stated that unfortunately, there is no definite consensus of opinion as to the exact significance of either a decreased or increased lumbosacral angle, partly because of the large variability and range of normal values.
A various number of investigations have been conducted to address the full understanding of the parameters (working fluids, inclination angle, heat input, and filling ratio..

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