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The big circle centred on the equant point is called a deferent.

Different hypotheses might produce the same result: for example an eccentric circle will generate exactly the same movement as an epicycle upon a deferent.

That, at least, would explain the bizarre look of deferent contrition on his face.

These images are almost reverentially deferent to Nature’s power.

“That tells us a story about British politeness culture being more deferent to saying please and American politeness culture being more interested in not showing deference but showing appreciation,” Murphy said.