Definition of thecal in English:

thecal

adjective

See theca

‘Magnetic resonance imaging of the pelvis showed a large sacral mass that replaced the sacrum and compressed the thecal sac, extending anteriorly into the pelvic cavity, occupying a major portion of it.’
  • ‘Seawater is pumped through these canals and gas exchange takes place within the thecal interior.’
  • ‘It clearly has plates that can reasonably be interpreted as thecal.’
  • ‘These can all narrow the thecal sac, but the location and imaging features of the process in this case are highly suggestive of a disk herniation.’
  • ‘It is useful in distinguishing epidural abscess from the adjacent compressed thecal sac and other potential compressive lesions, such as a herniated disc.’