1. Of something having the yellow colour of sulphur
   - sulfur-yellow

See also: chromatic

• Old World beaver
• Old World buffalo
• Old World chat
• Old World coot
• Old World coral snake
• 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