1. ceboid - Noun
2. ceboid - Adjective
ceboid (not comparable)
Of or relating to any member of the superfamily (Ceboidea) of monkeys, believed to have evolved from prosimians isolated in South America, and including the marmosets, capuchins, tamarins, sapajous, and spider monkeys.
ceboid (plural ceboids)
Any member of this superfamily.