(chemistry, of a compound) [α]_D, the angle of rotation of the plane of polarization of a ray of monochromatic light that passes through 10cm of the substance in solution at a concentration of 1 gram per millilitre

The axis about which any body rotates. / The line joining the North Pole and South Pole about which the Earth rotates daily.

(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.

The practice of having passengers eat in several different restaurants during a cruise.

(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

(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.

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

Alternative spelling of rotational molding

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

plural of Faraday rotation