the GNU version of the Collaborative International Dictionary of English
adj. Viewing all around, or on all sides.
The Century Dictionary and Cyclopedia
Viewing on all sides — that is, giving distinct vision obliquely as well as axially.
Word Usage
"The author describes Coleman in the book as "one of my most supportive sponsors," and recounts his attempts to set up the tent: "I discover that the Coleman engineers have done a remarkable job of designing magnetic periscopic poles.""