Modifies a noun

• cava: A vena cava filter is a small, metal device about an inch long, shaped rather like the spokes of an umbrella.

• caval: An alternative, to prevent recurrence of pulmonary embolus, is an inferior vena caval filter.

• obstruction: Abner A: Approach to the patient who presents with superior vena cava obstruction.

• syndrome: Ingram L, Rivera GK, Shapiro DN: Superior vena cava syndrome associated with childhood malignancy: analysis of 24 cases.

• filter: A vena cava filter is a small, metal device about an inch long, shaped rather like the spokes of an umbrella.

• amoris: Even after the discovery that there was no vena amoris, the custom of wearing the wedding band on the third finger survived.