What Does It Mean?

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From our dictionary:
cen•trif•u•gal

(sen•trif'yu•gul, -u•gul),
adj.

1. moving or directed outward from the center (opposed to centripetal).
2. pertaining to or operated by centrifugal force: a centrifugal pump.
3. Physiol.efferent.

n.
Mach.

a. a machine for separating different materials by centrifugal force; centrifuge.
b. a rotating, perforated drum holding the materials to be separated in such a machine.