COLLOTYPES

Noun

collotypes

plural of collotype

Source: Wiktionary


COLLOTYPE

Col"lo*type, n. [Gr. glue + -type.]

Definition: A photomechanical print made directly from a hardened film of gelatin or other colloid; also, the process of making such prints. According to one method, the film is sensitized with potassium dichromate and exposed to light under a reversed negative. After the dichromate has been washed out, the film is soaked in glycerin and water. As this treatment causes swelling in those parts of the film which have been acted on by light, a plate results from which impressions can be taken with prepared ink. The albertype, phototype, and heliotype are collotypes.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

12 January 2025

HABIT

(noun) (psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition; “owls have nocturnal habits”; “she had a habit twirling the ends of her hair”; “long use had hardened him to it”


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Coffee Trivia

You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.

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