lodestone
n.
"magnetically polarized oxide of iron," 1510s, literally "way-stone," from lode + stone, n.. So called because it was used to make compass magnets to guide mariners. Figurative use from 1570s.
| 词汇 | lodestone |
| 词根词缀 | Online Etymology Dictionary lodestone n. "magnetically polarized oxide of iron," 1510s, literally "way-stone," from lode + stone, n.. So called because it was used to make compass magnets to guide mariners. Figurative use from 1570s. |
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