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Home/USA Today 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)

Nora WhitfieldNora Whitfield Crossword Editor · Verified answers

Looking for the answer to the USA Today Rootonym clue “Optical instrument consisting of a tube with lenses used especially in submarines (noun)”? The solution is PERISCOPE, a 9-letter word built on the root PERI (“around' (prefix)”). It appeared in the October 14, 2026 (Wednesday) USA Today Rootonym. See the full puzzle for that day's other words.

Answer
PERISCOPE
PERI*****PERImeans “around' (prefix)”
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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)”. Browse the full October 14, 2026 Rootonym puzzle for the other three words, or see all Rootonym answers.

Related clues from this puzzle

Border of a two-dimensional figure; outermost limits or boundary (noun) Branch of dentistry dealing with study and treatment of diseases of the bone, gums and connective tissue (noun) Pertaining to or constituting the border of any area or surface; away from the central part (adjective)
Browse all Rootonym puzzles →
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