1. Having a shape resembling a bunch of grapes; composed of rounded, clustered lobes or nodules.
Usage: technical; mineralogy and geology

Examples

• The botryoid mineral formation displayed a distinctive bunch-of-grapes appearance under the microscope.
• Botryoid hematite is prized by collectors for its unusual rounded, clustered structure.
• The geologist identified the specimen as botryoid chalcedony based on its characteristic bumpy surface.
• Botryoid aggregates form when minerals crystallize in rounded, grape-like clusters.
• The botryoid texture of the rock sample indicated specific conditions during mineral deposition.