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focometer: Meaning and Definition of

fo•com•e•ter

Pronunciation: (fō-kom'i-tur), [key]
— n. Optics.
  1. an instrument for measuring the focal length of a lens or other optical system.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
foci fo'c's'le
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