Definition of Tucana
astronomy
: a southern constellation that is visible between the constellations of Hydrus and Grus and that is represented by the figure of a toucan
Over a similar 10-day period last month, the Hubble telescope operated by the National Aeronautics and Space Administration was focused on a narrow region in the constellation Tucana, near the south celestial pole.— John Noble Wilford, New York Times, 24 Nov. 1998
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Merriam-Webster unabridged
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Time Traveler for Tucana
The first known use of Tucana was in 1802
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