Pl. -iums, -ia. [L., neut. sing. of aquārius (see prec.); cf. cl. L. aquārium a watering-place for cattle.] An artificial pond or tank (the latter usually with glass sides), in which aquatic plants and animals are kept alive for purposes of observation and study. Also, in recent usage, a place of public entertainment, in which such aquariums are exhibited.

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[1853.  Athenæum, 28 May, 647/2. This place [the new Fish house] has received … the somewhat curious title of the ‘Marine Vivarium.’

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1853.  Guide Zool. Gard., Aquatic Vivarium.]

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1854.  Gosse (title), The Aquarium; an Unveiling of the Wonders of the Deep Sea.

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1855.  Kingsley, Glaucus, 154. A prawn or two, and a few minute star-fish will make your aquarium complete.

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1869.  Eng. Mech., 14 May, 179/3. I have had aquariums made of several other materials, but find zinc the most successful.

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1880.  Disraeli, Endym., I. xx. 178. There were no Alhambras then, and no Cremornes, no palaces of crystal in terraced gardens, no casinos, no music-halls, no aquaria, no promenade concerts.

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