The patient's pupils dilated when the lights were turned off.

The patient's pupils dilatated when the lights in the room were turned off.

The surgeon observed the artery dilatating under the microscope during the procedure.

Clinicians warned that the dilatative agent could cause excessive blood vessel widening in some patients.

When exposed to heat, the antique watch's metal dilatates, affecting its accuracy.

The dilater attached to the instrument allowed the surgeon to widen the incision precisely.

The seismologist studied the dilatational components of the stress field to understand the source mechanism.

The dilational deformation of the polymer sample under pressure revealed alternating regions of expansion and compression.

The researcher measured the dilations of the samples under different temperatures to study thermal expansion.

The dilatable stent allowed surgeons to widen the artery without replacing it.