arachnoid
English
Pronunciation
- IPA(key): /əˈɹæk.nɔɪd/
- Rhymes: -æknɔɪd
Etymology 1
Mid 18th century borrowing from New Latin arachnoīdēs, from Ancient Greek ᾰ̓ρᾰχνοειδής (arakhnoeidḗs, “like a cobweb”), from ᾰ̓ρᾰ́χνη (arákhnē, “spider web”) + -ο- (-o-) + -ειδής (-eidḗs, “-oid, -like”). By surface analysis, arachn- + -oid.
Adjective
arachnoid (not comparable)
- Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
- (anatomy) Relating to the arachnoid mater.
Derived terms
Translations
relating to or resembling spider webs
Noun
arachnoid (plural arachnoids)
- (neuroanatomy) Ellipsis of arachnoid mater..
- (astronomy) A round network of fractures in the crust of Venus.
Derived terms
Translations
arachnoid mater — see arachnoid mater
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Etymology 2
19th century from translingual Arachnida + -oid.
Translations
References
- “arachnoid”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
- “arachnoid”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
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