Persistence of the frontal (metopic) suture of the skull (which commonly undergoes closure and obliteration in childhood).
Origin
Late 19th century; earliest use found in William Flower (1831–1899), zoologist and museum curator. From French métopisme from métop- (in métopique) + -isme.
Definition of metopism in US English:
metopism
nounˈmɛtəpɪz(ə)m
Anatomy Anthropology
Persistence of the frontal (metopic) suture of the skull (which commonly undergoes closure and obliteration in childhood).
Origin
Late 19th century; earliest use found in William Flower (1831–1899), zoologist and museum curator. From French métopisme from métop- (in métopique) + -isme.