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Glite Dictionary
🕷️ Like a spider 🕷️ A spider type 🧠 A brain layer
arachnoid

arachnoid

9.6
An animal like a spider with eight legs, not an insect
  • noun
  • /əˈræk.nɔɪd/
translation icon : arácnido
  • Some scientists study the web patterns created by various arachnoids, including spiders and mites.

Examples

  • A common arachnoid you might encounter in your garden is the garden spider.

  • A good example would be the regions we call the arachnoids because they look like spider bodies connected by weblike fractures.

    Academic text (1991)

  • Soviet researchers have christened these webs and their associated coronas arachnoids.

    Academic text (1993)

  • The arachnoid is a member of the class of arthropods that includes spiders and scorpions.

Synonyms

arachnid
vsarachnoid
9 6.8

An animal with eight legs like a spider or scorpion

is the same class but describes leg number as eight rather than pairs

Compounds

arachnoid membrane
  • Specialized
8.9

A thin, web-like middle layer that covers the brain and spinal cord

Surface Forms

arachnoid singular
arachnoids plural

Morphology

arachnoid = arachnid (transparent) = arachno + oid

The noun sense 'an arachnoid' as a member of the arachnid group is a straightforward 'spider-like / spider-related' formation from the combining form plus '-oid'.

Etymology

Arachnoid meaning an animal comes from the Greek arachne 'spider' and is the same root as arachnid, so it points to creatures with eight legs like spiders and scorpions.