(agriculture) A farming practice in which the same land is used to grow different crops in successive seasons or years (when once the land would have been left fallow); used to prevent erosion and increase fertility.

(physics) The rotation of the plane of polarization of plane polarized light as it passes through a chiral medium

A form of molding/moulding in which molten plastic is placed inside a rotating mold/mould.

plural of specific rotation

Synonym of Norfolk crop rotation

The spin axis of a freely rotating body. In the case of the Earth, it differs from the figure axis by a few meters. This difference being a partial cause of the Earth's wobble.

plural of crop rotation

plural of rotational axis

(forestry) The time allowed to elapse between successive occurrences of a stand of trees being logged. / Used other than figuratively or idiomatically: see rotation, time.

(astrophysics) for a galaxy, a plot of the orbital velocity of objects with respect to the center of the galaxy, as a function of the distance between the two