[muhl-tee-foh-kuhl, muhl-tahy-]
having several focuses.
(of an eyeglass lens) having several focusing areas that correct for both nearsightedness and farsightedness.

1915–20; multi- + focal Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

multifocal mul·ti·fo·cal (mŭl'tĭ-fō'kəl)
Relating to or arising from many foci.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Such products are soon likely to replace multifocal lenses.
Multifocal lenses can focus at different points for both reading and distance vision.
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