1. Having a relatively broad, short skull; characterized by a cephalic index of 80 or higher.
Usage: anthropology; anatomy; technical
2. Of or relating to animals, especially dogs or cats, that have a shortened muzzle and broad skull.
Usage: zoology; veterinary

Examples

• The brachycephalous skull shape is common in certain dog breeds like bulldogs and pugs.
• Anthropologists classify human populations partly by whether they are brachycephalous or dolichocephalous.
• Brachycephalous cats, such as Persians, often have breathing difficulties due to their flat faces.
• The brachycephalous structure of the boxer's head is a defining breed characteristic.
• Modern humans show considerable variation, with some populations being more brachycephalous than others.