|—n , pl -ta|
|1.||a feltlike covering of downy hairs on leaves and other plant parts|
|2.||a network of minute blood vessels occurring in the human brain between the pia mater and cerebral cortex|
|[C17: New Latin, from Latin: stuffing for cushions; related to Latin tumēre to swell]|
tomentum to·men·tum (tō-měn'təm)
n. pl. to·men·ta (-tə)
A network of extremely small blood vessels passing between the pia mater and the cerebral cortex.