rotative, a. [Cf. F. rotatif.].
Rotative engine, a steam engine in which the reciprocating motion of the piston is transformed into a continuous rotary motion, as by means of a connecting rod, a working beam and crank, or an oscillating cylinder.
turning, as a wheel; rotary; rotational. [1913 Webster
"This high rotative velocity of the sun must cause an equatorial rise of the solar atmosphere."