pelvisanterior view of an adult male human pelvisA. iliumB. sacrumC. acetabulumD. pubisE. pubic symphysisF. ischiumpel·vis (p?l?v?s)n. pl. pel·vis·es or pel·ves (-v?z) 1. A basin-shaped structure of the skeleton of many vertebrates, composed in humans of the hipbones on the sides, the pubis in front, and the sacrum and coccyx behind, that rests on the lower limbs and supports the spinal column.2. The cavity formed by this structure.3. See renal pelvis.[Latin p?lvis, basin.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.pelvis (?p?lv?s) n, pl -vises or -ves (-vi?z) 1. (Anatomy) the large funnel-shaped structure at the lower end of the trunk of most vertebrates: in man it is formed by the hipbones and sacrum2. (Anatomy) the bones that form this structure3. (Anatomy) any anatomical cavity or structure shaped like a funnel or cup4. (Anatomy) short for renal pelvis[C17: from Latin: basin, laver]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014pel?vis (?p?l v?s) n., pl. -vis?es, -ves (-viz) 1. a. the basinlike cavity in the lower trunk of the body, formed by the sacrum, ilium, ischium, and pubis. b. the bones forming this cavity. 2. the cavity of the kidney that receives the urine before it is passed into the ureter. [1605?15;