Definition of fixative
: something that fixes or sets: such as
a
: a substance added to a perfume especially to prevent too rapid evaporation
b
: a substance used to fix living tissue
c
: a varnish used especially for the protection of drawings (as in pastel or charcoal)
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Merriam-Webster unabridged
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Time Traveler for fixative
The first known use of fixative was circa 1859
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