| 单词 | retardant |
| 释义 | retardant —retardance, retardancy, n. /ri tahr"dnt/, n. Chem. 1. any substance capable of reducing the speed of a given reaction. adj. 2. retarding or tending to retard (usually used in combination): fire-retardant construction materials. [1635-45; RETARD + -ANT] |
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