reodorant

noun

reodorant

noun

1

A chemical additive designed to restore, enhance or disguise an odor.

Care must be taken never to use a reodorant to mask or cover up a toxic concentration of gas.1960, American Society of Heating, Air-Conditioning Engineers, Heating, Ventilating, Air Conditioning Guide, page 83:
Some new material, the mask or reodorant which has something in common with the unwanted odour is added, eg an acid odour can be built up to a fruity note.1966, R. W. Moncrieff, Odour Preferences, page 314:

1 more example

Aromatics, sometimes referred to as reodorants, are added to fabric sizing to disguise the glue or casein smell, leaving the product with a fine fresh odor.1984, Nicholas Basta, George T. Austin, Shreve's Chemical Process Industries Handbook, 5th edition, page 485:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.