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单词 arachnoid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
a•rach•noid  (ə rak′noid),USA pronunciation adj. 
  1. Insectsresembling a spider's web.
  2. Insectsof or belonging to the arachnids.
  3. Anatomyof or pertaining to the arachnoid membrane.
  4. Botanyformed of or covered with long, delicate hairs or fibers.

n. 
  1. Insectsan arachnid.
  2. Anatomythe serous membrane forming the middle of the three coverings of the brain and spinal cord. Cf. dura mater, meninges, pia mater.
  • Greek arachnoeidé̄s cobweblike. See arachnid, -oid
  • Neo-Latin arachnoīdes
  • 1745–55

Collins Concise English Dictionary © HarperCollins Publishers::
arachnoid /əˈræknɔɪd/ n
  1. the middle of the three membranes that cover the brain and spinal cord
    See meninges
 adj
  1. of or relating to the middle of the three meninges
  2. consisting of or covered with soft fine hairs or fibres
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更新时间：2025/2/23 7:23:38