Definition of roseate tern
: a medium-sized tern (Sterna dougallii) that is widespread at sea and in coastal areas of the Atlantic, Pacific, and Indian oceans and that has a faint roseate tinge to the breast in the breeding season
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Merriam-Webster unabridged
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Time Traveler for roseate tern
The first known use of roseate tern was circa 1813
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