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Home/Rootonym/Optical instrument consisting of a tube with lenses used especially in submarines (noun)

Optical instrument consisting of a tube with lenses used especially in submarines (noun)

MEMaya EllisonPuzzle Editor · Verified answers

USA Today Rootonym clue · 9 letters · last seen October 14, 2026

Answer
PERISCOPE
PERISCOPE · 9 letters · puzzle shows PERI*****
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The Root
PERImeans “around' (prefix)”

In a sentence: Captain Samuel's submarine avoided foreign vessels using the PERISCOPE and remained undetected.

About this clue

The Rootonym clue “Optical instrument consisting of a tube with lenses used especially in submarines (noun)” has the answer PERISCOPE (9 letters), built on the root PERI, which means “around' (prefix)”. See the full October 14, 2026 Rootonym puzzle for the other three words, or browse all Rootonym answers.

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