The Collaborative International Dictionary
Neurocoele
Neurocoele \Neu"ro*c[oe]le\, n. [Neuro- + Gr. koi^los a hollow.] (Anat.) The central canal and ventricles of the spinal cord and brain; the myelencephalic cavity.
Wiktionary
neurocoele
n. (context anatomy English) The neural canal