nounpl. noni or no·nis
- An evergreen shrub or small tree (Morinda citrifolia) native to Southeast Asia and Australia and widely cultivated in the tropics, traditionally valued for medicinal purposes and as a source of dye.
- The soft, yellowish-white, strong-smelling fruit of this plant, often processed into juice or powder for use as a dietary supplement. In both senses also called Indian mulberry.
Origin of noniHawaiian; akin to Tahitian, nono and Samoan nonu all ultimately from Proto-Polynesian *nonu.