Definition of dewlap
1
: a fold or flap of skin on the neck of some animals: such as
a
: loose skin hanging under the neck of dogs and cattle of some breeds — see cow illustration
b
: a usually brightly colored extensible flap of skin on the throat of a lizard (such as an anole)
2
: loose flesh on the human throat
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Merriam-Webster unabridged
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Time Traveler for dewlap
The first known use of dewlap was in the 14th century
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