Here's what rhymes with contractile.

Consider these alternatives

contractility / ability subcomponents / components vacuole / whole myocardium / guardian inhibitory / story motility / stability lophophore / novel myosin / niacin myocytes / rights organelles / self isoprene / seen microtubules / tubules microtubule / tubule reticulum / curriculum elongation / education homeostasis / basis secrete / feet physiologic / logic chitin / writing secretory / story