gyradius

Etymology
.

Noun

 * 1)  Radius of gyration.
 * 2) * 1966, Bruce Jennings Muga, Experimental and Theoretical Study of Motion of a Barge as Moored in Ocean Waves, Department of Civil Engineering,, page 17,
 * It should be noted that the vertical center of gravity (VCG), the longitudinal gyradius, and the natural pitch period do not agree with those required to simulate the full-scale prototype.