It took several tries, as the probing seemed to incite the pains, and examination was impossible during the relentlessly powerful contractions.

Forgive. . .' Her voice trailed off to a groan as another powerful contraction started.

Yet, here, puckered tightly with a contraction so unexpectedly powerful.

The muscles of my legs tensed with a tremendously powerful contraction.

Two to three powerful contractions may cause the baby to appear with considerable rapidity.

Prolonged muscular action causes sudden, powerful, and painful contractions of muscle groups.

Glycogen can be rapidly converted to glucose when energy is required for sustained, powerful contractions.

Possibly an aftereffect of the powerful muscular contractions.

He seized our hands and, with a powerful muscular contraction, pulled us tight against his chest.

Within minutes, Hattie was wracked with powerful contractions.