Definition of pontine:
(adj) :
(neuroanatomy) Of or pertaining to the pons in the brain stem.
(adj) :
(architecture) Of or relating to a bridge or bridges.
(adj) :
Of or relating to the Pontine Marshes, a formerly extensive swampy area between Rome and Naples. The area has since been drained and reclaimed and is today mostly used for agriculture.
(adj) :
Pertaining to Ponza, an island in the Tyrrhenian Sea