ironclad
adj.
1852, of warships, American English, from iron, n. + clad. Of contracts, etc., 1884. As a noun meaning "iron-clad ship," it is attested from 1862.
| 词汇 | ironclad |
| 词根词缀 | Online Etymology Dictionary ironclad adj. 1852, of warships, American English, from iron, n. + clad. Of contracts, etc., 1884. As a noun meaning "iron-clad ship," it is attested from 1862. |
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