0 the state of being larger or more open than usual
2 a change in the shape of a figure in which is it made larger or smaller according to a scale (= relationship of sizes)
As she lowered her head in the movement, the dilation of her nostrils repressed a smile of satisfaction.
During the operations of dilation of the urethra, I passed some gravel.
She knew it by the sudden softening of his voice as he spoke to her, by the curious brilliant dilation of his eyes as they followed her about the room.
Systole and diastole, the contraction and dilation of the heart and arteries.
Two sequences are equivalent if and only if they admit contractions which have a common dilation.
On cardiac examination, an abnormal four-chamber view was detected, mainly due to dilation of the right atrium.
Of these, four had a good result following the second dilation and the remaining two underwent elective surgical repair because of inadequate relief of obstruction.
