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cilia

noun, plural of cilium

1. (biology) microscopic, hair-like projections on the surfaces of some cells and of certain organisms. There are of two kinds: motile cilia (for [[locomotion]]) and non-motile cilia (for sensory). Example of tissue cells with cilia are the epithelia lining the lungs that sweep away fluids or particles. Examples of organisms that have cilia are protozoans that use them for movement.

2. (botany) hairs forming a fringe along the margin or edge of a plant structure, e.g. of a leaf

3. (anatomy) the eyelashes