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cil·i·um
 cilium
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- pronunciation:
- sI
li
 m
| part of speech: |
noun |
| inflections: |
cilia |
| definition 1: |
one of the microscopic hairlike structures on the surface of many cells, providing locomotion in single-celled animals and movement of fluid across the cells that line certain organs, such as the lungs or stomach, in complex animals.
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| definition 2: |
a tiny hair on a plant, insect, or the like.
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| definition 3: |
an eyelash.
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