simple past tense and past participle of periscope

A form of viewing device that allows the viewer to see things at a different height level and usually with minimal visibility. / (obsolete): A general or comprehensive view.

(intransitive) To rise and peer around, in the manner of a periscope.

plural of periscope

Relating to periscopes and their use.

Using a periscope. / With a similar movement to that of a periscope.

present participle of periscope

(transitive or intransitive, Internet) To broadcast live video stream using Periscope app via phone or tablet.