patency noun.
['peɪt(ǝ)nsi] M17.[from PATENT noun, adjective: see -ENCY.]1. The state or condition of being open or exposed to view; manifestness, obviousness.
M17.2. Anatomy &
Medicine. The condition of being open, expanded, or unobstructed.
M19. [TahlilGaran] English Dictionary ▲