1. a tropical or subtropical fruit with a tough skin and juicy flesh, such as an orange, lemon, or lime
2. a tree or shrub that produces citrus fruits

1. of, relating to, or containing citrus fruits or their flavor

Examples

• Oranges and lemons are types of citrus.
• The citrus grove produced thousands of pounds of fruit each year.
• This juice has a fresh citrus flavor.
• Citrus fruits are rich in vitamin C.
• The bakery uses citrus zest in their cakes.
• We planted several citrus trees in our backyard.