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incubation patch
noun
a highly vascular, featherless area developed on the abdomen of certain brooding birds that is in direct contact with eggs during incubation and provides additional warmth.
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Word History and Origins
Origin of incubation patch1
First recorded in 1950–55
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The incubation patch of passerine birds.
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