1. a small tuft or mass of woolly or fluffy material
Usage: technical
2. a type of cloud formation consisting of small, ragged patches
Usage: meteorology

Examples

• The botanist examined the floccus of cotton-like fibers on the plant stem.
• Small floccus formations appeared scattered across the evening sky.
• The microscope revealed a delicate floccus of fungal material.
• Weather observers noted the floccus clouds drifting at high altitude.
• The seed pod released its floccus of silky white fibers into the wind.