a. Of or pertaining to an orbit. “Orbital revolution.” J. D. Forbes. [ 1913 Webster ]
Orbital index (Anat.), in the skull, the ratio of the vertical height to the transverse width of the orbit, which is taken as the standard, equal to 100. [ 1913 Webster ]
[モンツキテンジクザメぞく, montsukitenjikuzame zoku](n) Hemiscyllium (genus of longtail carpet sharks in the family Hemiscylliidae with short snouts, nostrils at the tip, and elevated eyes and supraorbital ridges)[Add to Longdo]