最終更新日：2022/12/07

noon gun

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A sundial with a cannon whose fuse is lit by a lens concentrating sunbeams, positioned to fire at noon.

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元となった辞書の項目

noon gun

noun

A sundial with a cannon whose fuse is lit by a lens concentrating sunbeams, positioned to fire at noon.

The noon gun is fired every day at 12 o'clock.

意味（1）

A sundial with a cannon whose fuse is lit by a lens concentrating sunbeams, positioned to fire at noon.