intrathecal
Concise Oxford English Dictionary © 2008 Oxford University Press:
intrathecal /ˌɪntrəˈθiːk(ə)l/
▶adjective Medicine occurring within or administered into the spinal theca.
– derivatives
intrathecally adverb.
intrathecally adverb.
'intrathecal' also found in these Oxford entries:

