Pronunciation: [djˈuːlap] (IPA) 
The word "dewlap" is spelled as /ˈdjuː.læp/ in IPA phonetic transcription. The first two letters "d" and "e" are pronounced as "ju", which is a consonant sound followed by a short "u" vowel sound. The "w" in "dewlap" is silent and is not pronounced. The "l" is pronounced as a consonant sound followed by a short "a" vowel sound. Finally, the "p" at the end of the word is pronounced as a silent consonant.
The term "dewlap" refers to a distinctive anatomical feature primarily found in certain animals, particularly quadrupeds and birds. It is a loose fold of skin that hangs from the neck or throat region, usually below the chin or jawline. The dewlap can be seen as a pouch-like structure that varies in size, shape, and texture among different species.
In animals, the dewlap often serves various purposes, depending on the specific creature. For instance, in some mammals like cows, deer, or certain breeds of dogs, the dewlap is a natural ornamentation or physical trait that may play a role in courtship displays or signaling dominance within a group. In birds, such as chickens, turkeys, or certain species of pigeons, the dewlap can be an adornment used during courtship to attract a mate.
In addition to its role in communication and breeding behavior, the dewlap may also serve other functions. In certain climatic conditions, an animal's dewlap can help regulate body temperature by dissipating excess heat. It acts as a thermal radiator, as the loose skin enlarges the surface area to facilitate cooling through evaporation.
Overall, the dewlap can be considered a specialized extension of the throat or neck region found in various animals, fulfilling different functions related to communication, mating, and thermoregulation.
The word "dewlap" is derived from the combination of two Old English words: "dēaw" and "læppa".
1. "Dēaw" (pronounced 'dee-aw') meant "dew" or "moisture" in Old English. It referred to the droplets of water that form on plants overnight or early in the morning.
2. "Læppa" (pronounced 'leppa') meant "flap" or "hanging part" in Old English. It referred to loose or hanging skin or flesh.
Combining these two words together, "dēaw" and "læppa", created the term "dēawlæppa", which eventually evolved into the modern word "dewlap". The term likely originated from the idea that the loose, hanging fold of skin or flesh resembles the dew that forms on plants.
