Term: branchiostegal ray 1 ossification
Name: branchiostegal ray 1
Synonyms: branchiostegal rays 1
Definition: Branchiostegal ray that is the most anterior ray which ossifies last (5.5 mm NL).
Ontology: Anatomy Ontology [ZFA:0001279]

Name: ossification
Synonyms: bone biosynthesis, bone formation, osteogenesis
Definition: The formation of bone or of a bony substance, or the conversion of fibrous tissue or of cartilage into bone or a bony substance.
Ontology: GO: Biological Process [GO:0001503]    QuickGO    AmiGO