Sinuous: Curving in and out; in a serpentine, wavy form; winding. From the Latin noun "sinus," which means "curve, fold, or hollow' and also was borrowed directly to designate the "and out; in a serpentine, wavy form; winding.
CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW

SLIDESHOW
Heart Disease: Causes of a Heart Attack See SlideshowHealth Solutions From Our Sponsors
Reviewed on 12/11/2018