paracentric : Idioms & Phrases
Paracentric curve
(Math.) , a curve having the property that, when its plane is placed vertically, a body descending along it, by the force of gravity, will approach to, or recede from, a fixed point or center, by equal distances in equal times; called also aparacentric .
Webster 1913
Paracentric motton ∨ velocity
- the motion or velocity of a revolving body, as a planet, by which it approaches to, or recedes from, the center, without reference to its motion in space, or to its motion as reckoned in any other direction.