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heliotype

 - 3 dictionary results

he⋅li⋅o⋅type

[hee-lee-uh-tahyp]
–noun, verb, -typed, -typ⋅ing.
collotype.

Origin:
1865–70; helio- + -type


he⋅li⋅o⋅typ⋅ic [hee-lee-uh-tip-ik] , adjective
he⋅li⋅o⋅typ⋅i⋅cal⋅ly, adverb

col⋅lo⋅type

[kol-uh-tahyp] noun, verb, -typed, -typ⋅ing.
–noun Also called albertype, artotype, heliotype.
1. any photomechanical process of printing from a plate coated with gelatin.
2. the plate used for this.
3. a print made from such a plate.
–verb (used with object)
4. to produce (a print) by collotype; albertype; artotype; heliotype.

Origin:
1880–85; < Gk kóll(a) glue + -o- + -type


col⋅lo⋅typ⋅ic [kol-uh-tip-ik] , adjective
col⋅lo⋅typ⋅y [kol-uh-tahy-pee] , noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To heliotype
he·li·o·type   (hē'lē-ə-tīp')   
n.  
  1. A photomechanically produced plate for pictures or type made by exposing a gelatin film under a negative, hardening it with chrome alum, and printing directly from it.

  2. also he·li·o·typ·y (-tī'pē) The process of producing a heliotype.

he'li·o·type' v., he'li·o·typ'ic (-tĭp'ĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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