The quality or condition of having two sides or bilateral arrangement, especially as applied to anatomical or botanical structures.
From 'bicollateral' plus the suffix '-ity,' which transforms an adjective into a noun expressing a state or condition. This technical term developed in botanical classification.
When botanists discovered that some plants had vascular tissue on both the inside and outside of their stems (bicollaterality), it completely changed how they understood plant evolution and which species were most closely related to each other.
Complete word intelligence in one call. Free tier — 50 lookups/day.