Singular form of "cilia" is cilium. The meaning of the word "cilia" is hairlike organelles that line the surface of certain cells, and it also means eyelids.

Eukaryotic cilia and flagella are cell surfaceprojections familiar to ....

Cilia and flagella are made of dynins and nexin proteins. Cilia and flagella are made up of microtubules and they are long, wispy tentecles that resemble hair.

movement

Cilia and flagella are an arrangement of microtubules. Microtubules are fibrous rods that primarily affect the shape, movement, and support of a cell. For example, microtubules are the fibers you see in mitosis that pull the chromosomes to separate ends of the cell.