patency

From patent +‎ -cy.

• IPA^(key): /ˈpeɪtənsi/

patency (plural patencies)

1. (medicine) The condition or state of being patent.

   Antonyms: impatency, imperforation, atresia, occlusion

2. (medicine) The degree of openness (of a tube, such as a blood vessel or catheter); the relative absence of blockage or obstruction. Measured in percent.

   Antonym: obstruction

3. (uncountable) Obviousness; clarity.