1. masses of pollen grains that stick together, found in orchids and some other plants
Usage: botanical; plural form

Examples

• The orchid’s pollinia attached to the bee’s back as it visited the flower.
• Botanists studied the pollinia to understand the plant’s reproductive strategy.
• Each pollinium contains thousands of individual pollen grains.
• The pollinia are transferred from flower to flower by visiting insects.
• Under the microscope, the pollinia appeared as compact, waxy structures.
• Different orchid species have pollinia of varying shapes and sizes.