1) Italian marsh area 2) Marshes of central Italy 
• (a.) Of or pertaining to an extensive marshy district between Rome and Naples.
Having to do with the pons (part of the central nervous system, located at the base of the brain, between the medulla oblongata and the midbrain).
(pon´tīn) (pon´tēn) pertaining to the pons.
Pon'tine adjective [ Latin Pontinus or Pomptinus , an appellation given to a district in Latium, near Pometia .] Of or pertaining to an extensive marshy district between Rome and Naples. [ Written also Pomptine .]