| 单词 | pyrophoric |
| 释义 | Word Frequency pyrophoric(ˌpaɪrəʊˈfɒrɪk) or rare pyrophorous (paɪˈrɒfərəs) adjective 1. (of a chemical) igniting spontaneously on contact with air 2. (of an alloy) producing sparks when struck or scraped lighter flints are made of pyrophoric alloy Word origin C19: from New Latin pyrophorus, from Greek purophoros fire-bearing, from pur fire + pherein to bear |
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