1. An African clawed frog; in some classifications made the type genus of a separate family Xenopodidae
   - Xenopus

Type of: amphibian genus

Part of: family Pipidae, Pipidae

• old-age pensioner
• old-fashionedness
• old-field toadflax
• old-hat
• old-line
• old-maid's bonnet
• old-maidish
• old-man-of-the-woods
• old-time
• old-womanish
• old-world
• olde worlde
• olden
• Oldenburg
• older
• Oldfield
• oldie
• oldish
• oldness
• oldster
• oldtimer
• Olduvai Gorge
• oldwench
• oldwife
• ole