dilated

dilated (comparative more dilated, superlative most dilated)

1. Having dilated or enlarged.
   • 1704, Isaac Newton, Newton's Opticks:

     Now the rays of yellow being more refracted by the first Superficies of the said Air than those of red, are thereby made more oblique to the second Superficies, at which they are reflected to produce the colour'd Rings, and consequently the yellow Circle in each Ring will be more dilated than the red; and the Excess of its Dilatation will be so much the greater, by how much the greater is the obliquity of the Rays, until at last it become of equal extent with the red of the same Ring.

   • 1847, Samuel Solly, The Human Brain, page 318:

     Is a little better, more conscious, and quieter, bowels purged, mercurial stools, pulse jerking 144, right pupil rather more dilated than the left.

   • 1864, month=October, John W. Ogle, “Original Communications: Cases illustrating the Formation of Morbid Growths, Deposits, Tumours, Cysts, &c., in connexion with the Brain and Spinal Cord, and their Investing Membranes. With Observations”, in British and Foreign Medico-chirurgical Review, volume 34, page 484:

     Both pupils were very dilated, and quite inactive, excepting that she could distinguish light from darkness with the RIGHT eye, was quite blind, and had lost all power of smell.

   • 2023, Walter Rivington, A Case of Pulsating Tumour of the Left Orbit, page 107:

     M. Wecker found with ophthalmoscope a pale papilla, indications of hypertrophy of cellular tissue, very dilated veins, and some little hæmorrhagic spots.

2. Relatively large.
   • 1855, John Curtis, “Remarks relative to the affinities and analogies of natural objects, more particularly of Hypocephalus, a Genus of Coleoptera”, in The transactions of the Linnean Society of London:

     The sternum forms a long, linear, deeply channeled lobe, between the coxæ, the apex very dilated, cordate, with a very elevated ridge in the centre, like a nose in profile

   • 1860, John L. Le Conte, “Revision of the Cicindelæ of the United States”, in Transactions of the American Philosophical Society, page 41:

     Of the same form as C. 12-guttata, but having the elytra of the female more dilated, and the apical serratures and the sutural spine much more distinct.

   • 1914, Memoirs of the Indian Museum, page 162:

     A species very easily distinguished from the others by its very dilated black wings, which have only a few marginal hyaline spots and very few discal subhyaline dots.

dilated

1. simple past and past participle of dilate