1. a very small sphere, typically measuring less than one millimeter in diameter
Usage: scientific; technical
2. a tiny spherical particle used in medical treatments, cosmetics, or research applications
Usage: medical; pharmaceutical

Examples

• The researchers used glass microspheres to study fluid dynamics.
• Drug-loaded microspheres can provide controlled release of medication.
• The cosmetic cream contained microspheres that burst when applied to skin.
• Scientists observed the movement of fluorescent microspheres under the microscope.
• Biodegradable microspheres are being developed for targeted cancer therapy.
• The paint additive included ceramic microspheres to improve insulation properties.