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| a·rach·noid [ ə rák nòyd ] |
noun (plural a·rach·noids) |
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| Definition: |
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1. anatomy membrane in spinal cord: the middle of the three membranes that envelop the brain and spinal cord
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2. zoology
Same as arachnid
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adjective |
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| Definition: |
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zoology like arachnid: resembling or related to an arachnid
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| [Mid-18th century. Via modern Latin< Greek arakhnoeidēs "like a spider's web" < arakhnē "spider's web"] |
