fixative

[fik-suh-tiv]
adjective
1.
serving to fix; making fixed or permanent.
noun Also, fixatif [fik-suh-tiv, -teef] .
2.
a fixative substance, as a gummy liquid sprayed on a drawing to prevent blurring, or a solution for killing, hardening, and preserving material for microscopic study.
3.
Also called fixer. Photography. a chemical substance, as sodium thiosulfate, used to promote fixation.
4.
a substance that retards evaporation, as in the manufacture of perfume.

Origin:
1635–45; fix + -ative

unfixative, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
fixative (ˈfɪksətɪv)
 
adj
1.  serving or tending to fix
 
n
2.  a fluid usually consisting of a transparent resin, such as shellac, dissolved in alcohol and sprayed over drawings to prevent smudging
3.  cytology a fluid, such as formaldehyde or ethanol, that fixes tissues and cells for microscopic study
4.  a substance added to a liquid, such as a perfume, to make it less volatile

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

fixative fix·a·tive (fĭk'sə-tĭv)
adj.
Serving to fix, bind, or make firm or stable. n.
A substance used for the preservation of tissue or cell specimens.

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
Spray the best one with artist's fixative and you're done.
The odors of primer and fixative hovered in a fine dust of plaster, plastic and stone cuttings.
Most require either heat setting by ironing the design on the wrong side, or a chemical fixative.
The ideal temperature of the fixative is room temperature.
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