1. Heading in any direction that is conventionally down
   "a downbound channel"; "the downbound train"

See also: down

• ratoon
• ratsbane
• rattail
• rattail cactus
• rattail fish
• rattan
• rattan cane
• rattan palm
• ratteen
• ratter
• Rattigan
• ratting
• rattle
• rattle down
• rattle off
• rattle on
• rattle weed
• rattle-top
• rattlebox
• rattlebrained
• rattled
• rattlepated
• rattler
• rattlesnake
• rattlesnake fern