periscope C2 Topic:Tools, Machines & Construction US /ˈpɛɹɪskəʊp/ UK /ˈpɛɹɪskəʊp/ See IPA manual Freq #23192 Meanings 1 noun an optical instrument that provides a view of an otherwise obstructed field The pilot can see in any direction from his seat at the instrument-board, by means of special instruments, something like periscopes. Thesaurus Word family Forms periscopes Derived forms periscopism Related forms circumspectperiscopicperiscopically Etymology Formed in English from peri- + -scope. Topics Tools, Machines & Construction External links Google Images Cambridge Dictionary Wiktionary # periscope **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈpɛɹɪskəʊp/ **IPA (UK):** /ˈpɛɹɪskəʊp/ **Frequency rank:** 23192 ## Meanings 1. an optical instrument that provides a view of an otherwise obstructed field ## Examples - The pilot can see in any direction from his seat at the instrument-board, by means of special instruments, something like periscopes. ## Derived Forms - periscopism ## Related Forms - circumspect - periscopic - periscopically ## Roots and Affixes - Affix: peri- - around - Affix: -scope - instrument for viewing ## Etymology Formed in English from peri- + -scope. ## Topics - Tools, Machines & Construction markdown