The state or condition of being dioecious, where male and female reproductive organs exist on separate individual plants.
From Greek 'di-' (two) and 'oikos' (house) combined with the suffix '-ism' to describe the system or condition of having two separate reproductive houses.
Dioecism is essentially nature's solution to preventing self-fertilization: if you're a male plant, you literally cannot self-pollinate, forcing genetic mixing and diversity—this is why many economically important crops abandoned dioecism through selective breeding to make them self-fertile.
Complete word intelligence in one call. Free tier — 50 lookups/day.