stainless
adj.
1580s, from stain, n. + -less. Related: Stainlessly. Stainless steel is from 1917, a chromium-steel alloy (usually 14% chromium) used for cutlery, etc., so called because it is highly resistant to rust or tarnish.
| 词汇 | stainless |
| 词根词缀 | Online Etymology Dictionary stainless adj. 1580s, from stain, n. + -less. Related: Stainlessly. Stainless steel is from 1917, a chromium-steel alloy (usually 14% chromium) used for cutlery, etc., so called because it is highly resistant to rust or tarnish. |
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