orange

noun

• 1a large round juicy citrus fruit with a tough bright reddish-yellow rind: eat plenty of oranges [mass noun]:a slice of orange [as modifier]:orange juice
• [mass noun] chiefly British a drink made from or flavoured with oranges:a vodka and orange

• 2 (also orange tree) the leathery-leaved evergreen tree which produces oranges, native to warm regions of south and SE Asia.

  • Genus Citrus, family Rutaceae: several species, in particular the sweet orange (C. sinensis) and the Seville orange
• used in names of plants with similar fruit or flowers to the orange tree, e.g. mock orange.

• 3 [mass noun] a bright reddish-yellow colour like that of the skin of a ripe orange: tones of golden brown and orange [count noun]:the most shocking of pinks and oranges

• 4 [with modifier] a butterfly with mainly or partly orange wings.

  • Several species in the family Pieridae, in particular American species in the genera Colias and Eurema

adjective

• reddish yellow:an orange glow in the sky