Definitions

from The Century Dictionary.

  • Pertaining to or of the nature of the arachnoid, in any sense of the word; arachnoid.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Anat.) Pertaining to the arachnoid membrane; arachnoid.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective anatomy Pertaining to the arachnoid mater; arachnoid.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

arachnoid +‎ -al

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Examples

  • Come to think of it, what would an arachnoidal alien make of a human eating monkey meat?

    Glory Lane Foster, Alan Dean, 1946- 1987

  • —An arachnoidal villus represents an invasion of the dura by the arachnoid membrane, the latter penetrates the dura in such a manner that the arachnoid mesothelial cells come to lie directly beneath the vascular endothelium of the great dural sinuses.

    IX. Neurology. 4g. The Meninges of the Brain and Medulla Spinalis 1918

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