The Nautical Encyclopedia

Patterson’s Illustrated Nautical Encyclopedia — Howard Patterson, 1891

⚓ The Superstition Locker ⚓

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Home ⚓ Letter A ⚓ A. M.

A. M.

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Ante Meridian; before meridian; the hours from midnight to noon.

← A. B.All “A” entries A. M. Altitude →

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The Nautical Encyclopedia (1891) is in the public domain; this digital edition © 2026 PhotoOpAI.