brood patch
Definition
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
Example Sentence
Male penguins have a featherless area of skin known as a brood patch.
Synonyms
incubation patch; featherless area; area without feathers
Antonyms
feathered area
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brood patch