| biparietal | <anatomy> Of or pertaining to the diameter of the cranium, from one parietal fossa to the other. Origin: Pref. Bi- + parietal. Source: Websters Dictionary (01 Mar 1998) |
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| biparietal diameter | The diameter of the foetal head between the two parietal eminences. (05 Mar 2000) |
| articular circumference of radius | The portion of the head of the radius that articulates with the radial notch of the ulna. Synonym: circumferentia articularis radii. (05 Mar 2000) |
| articular circumference of ulna | The portion of the head of the ulna that articulates with the ulnar notch of the radius. Synonym: circumferentia articularis ulnae. (05 Mar 2000) |
| circumference | The outer boundary, especially of a circular area. Synonym: circumferentia. Origin: L. Circumferentia, a bearing around (05 Mar 2000) |