1. People or things that preserve, protect, or maintain something in its original state
The preservers of historical artifacts work tirelessly in the museum.
Os conservadores de artefatos históricos trabalham incansavelmente no museu.
2. Life jackets or flotation devices used to keep people afloat in water
All passengers must wear life preservers before boarding the boat.
Todos os passageiros devem usar coletes salva-vidas antes de embarcar no barco.
3. Substances or additives used to prevent decay or spoilage
Food preservers help extend the shelf life of products.
Os conservantes ajudam a prolongar a validade dos produtos.