| 释义 |
reˈtardent, a.
[f. retard v.]
= retardant. Also as n. A retarding thing or force.
1900Nature 16 Aug. 376/1 The protection afforded by various retardent materials. Ibid., The necessity of applying fire retardent material in at least two thicknesses. 1900Pop. Sci. Monthly LVI. 508 Materials which are not good as heat retardents. |