1. Having or consisting of two cycles or rings, especially in chemistry where a molecule contains two fused or separate ring structures.
Usage: technical; chemistry
2. In botany, having two whorls or cycles of floral parts.
Usage: technical; botany

Examples

• Naphthalene is a dicyclic aromatic hydrocarbon composed of two fused benzene rings.
• The dicyclic structure of the compound makes it more stable than its monocyclic counterpart.
• Dicyclic flowers have two distinct whorls of petals and sepals.
• Chemists often study dicyclic molecules to understand ring fusion and reactivity.
• The drug's dicyclic framework contributes to its biological activity.