Definition of ARACHNOID

arachnoid

Meanings

Plural: arachnoids

Noun

  • the middle of the 3 meninges
  • air-breathing arthropods characterized by simple eyes and four pairs of legs
  • Ellipsis of arachnoid mater.
  • A round network of fractures in the crust of Venus.
  • An arachnid.

Adjective

  • relating to or resembling a member of the class Arachnida

Adj

  • Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
  • Relating to the arachnoid mater.
  • Relating to or resembling spiders.

Origin / Etymology

Mid 18th century borrowing from New Latin arachnoīdēs, from Ancient Greek ᾰ̓ρᾰχνοειδής (ărăkhnoeidḗs, “like a cobweb”), from ᾰ̓ρᾰ́χνη (ărắkhnē, “spider web”) + -ο- (-o-) + -ειδής (-eidḗs, “-oid, -like”). By surface analysis, arachn- + -oid.

Synonyms

arachnid, arachnidian, arachnoid membrane, spiderlike, spiderly, spidery

Scrabble Score: 15

arachnoid is a valid Scrabble (US) TWL word
arachnoid is a valid Scrabble Word in Merriam-Webster MW Dictionary
arachnoid is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

arachnoid is a valid Words With Friends word