Dilation

n. [Lat. dilatio, O. Fr. & Pr. dilation, Sp. dilacion, It. dilazione. See DILATORY.] Delay. [Obs.] Sp. Hall.

n. [An English formative from dilate, the more common word being dilatation, from Lat. dīlatātio. See DILATATION.] The act of dilating, or the state of being dilated; expansion; dilatation. [Modern.] E. B. Browning.

At first her eye with slow dilation rolled. Tennyson.

Her murderous perspective before the doing of the deed, however subtle the precautions for its commission, would have been closed up by a gigantic dilation of the hateful figure, preventing her from seeing any consequences beyond it. Dickens.