Definition of "dilated" []

• Having been widened; expanded. (adjective)
• Distended. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The heart with noncompaction can be dilated with decreased pumping function as in dilated cardiomyopathy (see above) or can have normal pumping function."
• "She could hardly bear to look on the livid face, the closed eyes, the thin dilated nostrils, and the painful expression of powerlessness that met her sight."
• "GUPTA: Three hours. no heartbeat, no spontaneous respirations, pupils are dilated, which is an indication that the brain as swollen as well."