頸けい袋たいけいたいMeanings1noundewlapZoological term for a loose fold of skin hanging from the neck or throat of certain animals, such as cattle, lizards, or birds.イグアナの頸けい袋たいは体たい温おん調ちょう節せつに役やく立だつ。The iguana's dewlap helps regulate body temperature.
