English edit

Etymology edit

exo- +‎ gastric

Adjective edit

exogastric (not comparable)

  1. Outside of the stomach.
    • 2007, Alan H. Freeman, Radiology of the Stomach and Duodenum, page 139:
      Preoperatively and intraoperatively it is difficult to distinguish benign and malignant lesions; all may demonstrate a mixture of intramural, endogastric and exogastric appearances.
  2. Of the shell of a mollusc, curving forwards towards the head.
    • 1957, Rousseau Hayner Flower, Curt Teichert, The cephalopod order Discosorida, page 41:
      Vexing are two exogastric genera of the Simard limestone.
    • 1998, Norman Dennis Newell, Bivalves: An Eon of Evolution:
      I interpret Mellopegma as exogastric and separate it from Peel's (1991) class Helcionelloida because of its extremely narrow aperture with uniformly ventrally curved lateral margins.

Coordinate terms edit