A chemistry prefix indicating a compound with two fused or connected rings; used in naming complex organic molecules.
From bicyclic, used as a combining form in chemical nomenclature. Standard in IUPAC (International Union of Pure and Applied Chemistry) naming.
When chemists write 'bicyclo[2.2.1]heptane,' that weird bracket notation is actually a shorthand map of the ring structure—the numbers tell you how many atoms bridge between junction points, making it like coordinates for a molecular shape.
Complete word intelligence in one call. Free tier — 50 lookups/day.