Inclination

n. tendency; liking, preference; slope, incline, slant; bending, leaning

Inclination in general is the angle between a reference plane and another plane or axis of direction. The axial tilt is expressed as the angle made by the planet's axis and a line drawn through the planet's center perpendicular to the orbital plane.
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Noun
1. an attitude of mind especially one that favors one alternative over others; "he had an inclination to give up too easily"; "a tendency to be too strict"
(synonym) disposition, tendency
(hypernym) attitude, mental attitude
(hyponym) direction
(derivation) tend, be given, lean, incline, run
2. (astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
(synonym) inclination of an orbit
(hypernym) angle
(derivation) slope, incline, pitch
(classification) astronomy, uranology
3. (geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
(synonym) angle of inclination
(hypernym) angle
(derivation) slope, incline, pitch
(classification) geometry
4. (physics) the angle that a magnetic needle makes with the plane of the horizon
(synonym) dip, angle of dip, magnetic dip, magnetic inclination
(hypernym) angle
(derivation) slope, incline, pitch
(classification) physics, physical science, natural philosophy
5. that toward which you are inclined to feel a liking; "her inclination is for classical music"
(antonym) disinclination
(hypernym) liking
(hyponym) leaning, propensity, tendency
(derivation) tend, be given, lean, incline, run
6. the property possessed by a line or surface that departs from the vertical; "the tower had a pronounced tilt"; "the ship developed a list to starboard"; "he walked with a heavy inclination to the right"
(synonym) tilt, list, lean, leaning
(hypernym) position, spatial relation
(derivation) slope, incline, pitch
7. a characteristic likelihood of or natural disposition toward a certain condition or character or effect; "the alkaline inclination of the local waters"; "fabric with a tendency to shrink"
(synonym) tendency
(hypernym) disposition
(hyponym) electronegativity, negativity
(derivation) tend, be given, lean, incline, run
8. the act of inclining; bending forward; "an inclination of his head indicated his agreement"
(synonym) inclining
(hypernym) motion, movement, move, motility
(hyponym) bob
(derivation) incline

n. tendency, inclination; disposition, penchant, liking; slope, lean, tip

effusion; inclination; theft