arachnoid
/əˈɹæk.nɔɪd/
arachnoid adjective: relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers. Also the ellipsis of arachnoid mater.
Adjective (1)
arachnoid (not comparable)
- Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
- Relating to the arachnoid mater.
Noun (1)
arachnoid (plural arachnoids)
Adjective (2)
arachnoid (not comparable)
- Relating to or resembling spiders.
Noun (2)
arachnoid (plural arachnoids)
- An arachnid.
Also used as
arachnoid is also the ellipsis of arachnoid mater.
Forms of arachnoid
| plural | arachnoids |
|---|
Origin of arachnoid
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.
19th century from taxonomic name Arachnida + -oid.
Words formed from arachnoid
Phrases with arachnoid
Words that rhyme with arachnoid
Questions about arachnoid
- What does arachnoid mean?
- Arachnoid means relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
- What part of speech is arachnoid?
- Arachnoid can be an adjective or a noun.
- How do you pronounce arachnoid?
- Arachnoid is pronounced /əˈɹæk.nɔɪd/.
Words near arachnoid in the dictionary
Source and license
Adapted from Wiktionary: arachnoid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “arachnoid.” Word.ws, https://word.ws/arachnoid. Based on Wiktionary, CC BY-SA 4.0.