Words to Describe invagination

How invagination often is described ("________ invagination")

• nuclear
• shallow
• longitudinal
• embryonic
• archenteric
• progressive
• continued
• distinct
• dorsal
• anterior
• median
• secondary
• original
• lateral
• single
• partial
• proctodeal
• anal
• simple
• optic
• primitive
• similar
• ileocecal
• cytoplasmic
• central
• epiblastic
• unpaired
• nasal
• deep
• chronic
• acute
• characteristic
• tubular
• terminal
• primary
• small
• normal
• intestinal
• shaped
• cystic
• oesophageal
• coated
• embolic
• ectodermal
• congenital
• enteric
• glandular
• corresponding
• initial
• endodermal
• further
• apical
• irregular
• filled
• oral
• coronal
• double
• circular
• imperfect
• true
• abnormal
• epithelial
• slight
• epidermal
• narrow
• actual
• like
• epibolic
• marked
• posterior
• vesicular
• saclike
• typical
• proctodaeal
• medial
• complete
• complicated
• basilar
• subsequent
• caecal
• extensive
• synaptic