Armada. A fleet of warships.
Armed Mast. A built mast.
Armed Merchant Cruiser 22 Ascending Node
Armed Merchant Cruiser. Ocean liner taken over by Admiralty, in time of war, armed with guns and other weapons, manned by naval officers and ratings and employed on active service.
Armilla.* Former astronomical and navigational instrument consisting of rings that represented great circles of the celestial sphere. When aligned and suspended from a point that represented the zenith it indicated position of Ecliptic or Equinoctial. Equinoctial armilla was used to determine arrival of Equinox; solstitial armilla measured Sun's altitude.
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