English edit

Etymology edit

From retardant +‎ -cy.

Noun edit

retardancy (plural retardancies)

  1. The degree of being retardant
    • 1982, United States-Japan Cooperative Program in Natural Resources. Panel on Fire Research and Safety, Fire Research and Safety[1], page 2:
      The methods for evaluating flame and fire retardancy of these materials have been already established.
    • 2009, T. Richard Hull, Fire Retardancy of Polymers: New Strategies and Mechanisms[2], →ISBN:
    • 2014, Polymer Green Flame Retardants: A comprehensive Guide to ...[3], →ISBN:
      Fire safety legislation dictates, in particular, designing products of high-flame retardancy along with minimal environmental impact.