Last Updated
：2025/11/28
war tuba
（ plural ）
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An acoustic locator, vaguely resembling a tuba, used (by Japan during the World Wars) to provide early warning of incoming aircraft.
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war tuba
The soldiers listened intently to the war tuba as it warned of approaching enemy planes.
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The soldiers listened intently to the war tuba as it warned of approaching enemy planes.
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