Brachycephalism refers to the condition of having a relatively short and broad head, which is often associated with certain breeds of dogs and other animals. Some synonyms for this term might include "round-headedness," "bulldog face," or "pug-nosedness." Other related terms might include "mesocephaly," which refers to an intermediate head shape between long and short, or "dolichocephaly," which refers to a relatively long and narrow head. These terms can be useful for describing differences in anatomy between different animals or for noting particular physical features of individuals within a population.