Term of biology derived from Greek, gonos, origin, procreation, seed, sex and choré, space, region, separation. Unisexual. It is said of living beings who have separate sexes, in different individuals, what is common in animals and not so much in plants, in which case they are called dioetics, in Greek, who have two houses, that is, they have male and female flowers in different individuals. The adjective was coined by German naturalist Ernst Haeckel in the mid-19th century