retraction ring - RPET
- retraction ring
- retraction syndrome
- retractor
- retrad
- retrahens aurem, retrahens auriculam
- retreat from reality
- retrenchment
- retrieval
- retro-
- retro-ocular
- retro-ocular space
- retro-olivary groove
- retro-olivary nuclei
- retro-orbital
- retroacetabular
- retroaction
- retroactive
- retroactive inhibition
- retroactive interference
- retroannular recess
- retroaortic lymph nodes
- retroauricular
- retroauricular lymph nodes
- retrobuccal
- retrobulbar
- retrobulbar block
- retrobulbar fat
- retrobulbar neuritis
- retrobulbar pupillary reflex
- retrobulbar space
- retrocalcaneal
- retrocalcaneal bursa
- retrocalcaneal bursitis
- retrocalcaneal space
- retrocalcaneobursitis
- retrocardiac space
- retrocaval
- retrocaval lymph nodes
- retrocecal
- retrocecal fossa
