Each of eight parts into which a space or solid figure is divided by three planes (usually mutually perpendicular) intersecting at the central point.
| 单词 | θ114501 | 
| 释义 | the world > relative properties > number > specific numbers > eight > 			[noun]		 > division into eight > an eighth > made by three intersecting planes (1)		 octant1737 Each of eight parts into which a space or solid figure is divided by three planes (usually mutually perpendicular) intersecting at the central point. | 
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