| 单词 | naphthalene |
| 释义 | Word Frequency naphthalene or naphthaline (ˈnæfθəˌliːn, ˈnæp-) or naphthalin (ˈnæfθəlɪn, ˈnæp-) noun a white crystalline volatile solid with a characteristic penetrating odour: an aromatic hydrocarbon used in mothballs and in the manufacture of dyes, explosives, etc. Formula: C10H8 Derived forms naphthalic (næfˈθælɪk, næp-) adjective Word origin C19: from naphtha + alcohol + -ene |
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