arachnoid
arachnoid · arachnoids
A round network of fractures in the crust of VenusA round network of fractures in the crust of Venus.
/əˈɹæk.nɔɪd/
Meaning
2 sensesA round network of fractures in the crust of Venus.
An arachnid.
More definitions
- the middle of the 3 meninges
- air-breathing arthropods characterized by simple eyes and four pairs of legs
Origin
Mid 18th century borrowing from New Latin arachnoīdēs, from Ancient Greek ᾰ̓ρᾰχνοειδής (ărMid 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.
19th century from taxonomic name Arachnida + -oid.
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: arachnoids| Singular | arachnoid |
|---|---|
| Plural | arachnoids |
regular
Synonyms
2 synonymsClose in meaning
- the middle of the 3 meninges:arachnoid membrane
- air-breathing arthropods characterized by simple eyes and four pairs of legs:arachnid