expansion, increase, extension, growth, augmentation, amplification, magnification, escalation, widening, broadening, swelling, dilation, development
expansion - enlargement - widening - opening - distension - stretching - dilatation
Dilation refers to the process of becoming wider, larger, or more open. In medicine, it often describes the widening of a bodily passage or opening, such as the dilation of blood vessels, the pupil of the eye, or the cervix during childbirth. Dilation can occur naturally as part of normal body functions, or it can be induced through medication or medical procedures. In mathematics and geometry, dilation also denotes a transformation that enlarges or reduces a figure proportionally from a fixed center point. In all contexts, the core idea of dilation is a change in size characterized by expansion or spreading.