noun (plural varices /ˈvarɪsiːz/)
1 Medicine A varicose vein.
- Health results include varices (enlarged tortuous veins) at the lower end of the esophagus that can bleed severely.
- When these vessels form in the distal esophagus and stomach, the usually small rudimentary left gastric vein dilates and varices develop.
- Portal hypertension with bleeding varices is a serious complication of cirrhosis that can be treated surgically and with drug therapy.
2 Zoology Each of the ridges on the shell of a gastropod mollusc, marking a former position of the aperture.
- The apertural face of the varix of Alamirifica lacks the external ribs and has growth lines suggesting that a flared outer lip has been filled by successive layers that narrow the aperture.
- Laevistrombus, however, has a different shell form with a smooth rounded shoulder and varices on early whorls, characters not known for Austrombus.
- Alamirifica corona differs considerably from Echinobathra by not having protruding, very thick varices nor tabulate whorls.
Late Middle English: from Latin.
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