patulent

Anon some wrinkled, fidgety, cogitative being in human form would add a new volume to some slope or tower of the monstrous omni-patulent mass, or some sharp-glancing youth, with teeth set unevenly on edge, would pull out a volume, look greedily and half-believingly for a few moments, return it, and slink away.

The Atlantic Monthly, Volume 14, No. 83, September, 1864 Various

The lumen is not so patulent during inspiration as lower down; and it closes completely during expiration.

Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery Chevalier Jackson 1911