The thickest plate of an astrolabe; = mater, n.1 2. Now historical.
| 单词 | θ1497 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > [noun] > astrolabe > mater (2) motherc1400 The thickest plate of an astrolabe; = mater, n.1 2. Now historical. mater1585 The thickest plate of an astrolabe. Cf. mother, n.1 12. |
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