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a.1.(Opt.) Having all or many degrees of power; having a great range of power; - said of an eyepiece made adjustable so as to give a varying magnifying power.
1.Of or pertaining to the pancratium; athletic.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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For example, you have heard, I think, of the Cilician pancratic athlete, whom our fathers called "Halter", (2) how small he was, indeed much smaller than his opponents.
Moving the relay lens closer than twice its own focal length toward the primary focal plane will result in a pancratic system, one with variable effective focal lengths but with fixed focal planes.