Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: gill
Next word: gill cleft
Definition of: gill arch
Zool.
One of the arches in gill-bearing vertebrates that carry the gills. In the higher vertebrates, the gill arches are transformed to perform other functions.
Comment about this word, ask questions, or add new information about this topic: