Eccentricity

Eccentricity or eccentric may refer to:

• Off-center
• Eccentricity (behavior), odd behavior on the part of a person, as opposed to being "normal"
• Eccentricity (graph theory) of a vertex in a graph
• Eccentricity (mathematics), a parameter associated with every conic section
• Eccentric (mechanism), a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel
• Eccentricity vector
• Horizontal eccentricity, in vision, degrees of visual angle from the center of the eye
• Orbital eccentricity, in astrodynamics, calculated from orbital state vectors as an absolute value of eccentricity vector or using other methods based on orbital energy and angular momentum
• Eccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbit
• Eccentric Club, a London gentlemen's club
• Eccentric contraction, the lengthening of muscle fibers
• Eccentric, in astronomy, a type of deferent, a circle or sphere used in obsolete astronomical systems to carry a planet around the Earth or Sun
• Eccentric position of a surveying tripod to be able to measure hidden points
• Eccentric Training