| 单词 | mortar-hole |
| 释义 | > as lemmasmortar-hole mortar-hole n. a hole in a rock used as a mortar in primitive ore-crushing. ΚΠ 1882 Amer. Naturalist 16 205 The great number of mortar holes which may be seen in the outcroppings of the permanent or fixed rocks in the immediate neighborhood. 1902 R. N. Hall & W. G. Neal Anc. Ruins Rhodesia vi. 78 Shallow hollows on the rocks where the quartz powdered in the mortar-holes was evidently reduced to the fineness required for washing. 1932 Man 32 31/1 In one of these mortar-holes in ‘Cave 9’, at Ellora, I found a worn stone hammer or pestle. < as lemmas |
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