Dictionary  cal•o•typePronunciation: (kal'u-tīp"), [key] —n. 1. an early negative-positive photographic process, patented by William Henry Talbot in 1841, in which a paper negative is produced and then used to make a positive contact print in sunlight. 2. a print made by this process. Also called Talbotype. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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