1. Of an air current or wind; moving downward or down a slope because of cooling especially at night
   - catabatic

Antonym: anabatic

Encyclopedia: Katabatic

• portacaval shunt
• portage
• portal
• portal hypertension
• portal site
• portal system
• portal tomb
• portal vein
• portamento
• portative
• portcullis
• Porte
• porte-cochère
• portend
• portent
• portentous
• portentously
• porter
• porter's beer
• porterage
• porterhouse
• porterhouse steak
• portfolio
• porthole
• Portia