antarctic circumpolar or the "west wind drift"
It was an ideal unobstructed view.
Unobstructed means free from obstruction.
An unobstructed airway.
PATENT
Clear is one that I could think of. Feel free to expand."After her surgery to remove a bowel obstruction, her intestines were clear."
hysterosalpingography
48" - 54"
Only where that view is unobstructed.
open and unobstructed
24
Yes, it happens now and then when the windpipe cannot be unobstructed.
easily perceived by the eye or the ear clear unobstructed.