preservative Meaning, Definition & Usage

  1. noun a chemical compound that is added to protect against decay or decomposition
  2. adjective satellite tending or having the power to preserve
    • timbers should be treated with a preservative substance

WordNet

Pre*serv"a*tive adjective
Etymology
Cf. F. préservatif.
Definitions
  1. Having the power or quality of preserving; tending to preserve, or to keep from injury, decay, etc.
Pre*serv"a*tive noun
Definitions
  1. That which preserves, or has the power of preserving; a presevative agent.
    To wear tablets as preservatives against the plague. Bacon.

Webster 1913