1. Relating to or belonging to or characteristic of any worms of the phylum Annelida
   - annelid

See also: phylum Annelida

• Old World crayfish
• Old World flycatcher
• Old World hop hornbeam
• Old World jay
• Old World least weasel
• Old World leishmaniasis
• Old World mistletoe
• Old World monkey
• Old World oriole
• Old World porcupine
• Old World quail
• Old World rabbit
• Old World robin
• Old World scops owl
• Old World vulture
• Old World warbler
• Old world white pelican
• Old World yew
• old-age insurance
• old-age pension
• old-age pensioner
• old-fashionedness
• old-field toadflax
• old-hat
• old-line