part of part of in taxon results in formation of anatomical entity tube formation anatomical structure formation involved in morphogenesis semicircular canal morphogenesis semicircular canal formation GO:0060876 2009-08-13T09:45:07Z The developmental process pertaining to the initial formation of the semicircular canal from the otic vesicle. This process begins with the regionalization of the vesicle that specifies the area where the vesicles will form and continues through the process of fusion which forms the initial tubes. dph Craniata <chordates> semicircular canal