Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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adj
Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adj
Relating to the arachnoid mater.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: anatomy, medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adj
Relating to or resembling spiders.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable, relational
Topics: arachnology, biology, natural-sciences, zoology
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
Ellipsis of arachnoid mater.
Definition source: English Wiktionary via Wiktextract
Usage: abbreviation, alt-of, ellipsis
Topics: anatomy, medicine, neuroanatomy, neurology, neuroscience, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
A round network of fractures in the crust of Venus.
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
An arachnid.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adjective
relating to or resembling a member of the class Arachnida
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: arachnidian, spidery, spiderlike, spiderly
Antonyms: none provided
noun
air-breathing arthropods characterized by simple eyes and four pairs of legs
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: arachnid
Antonyms: none provided
Broader terms: arthropod
Narrower terms: harvestman, daddy longlegs, Phalangium opilio, scorpion, false scorpion, pseudoscorpion, whip-scorpion, whip scorpion, spider, acarine
noun
the middle of the 3 meninges
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: arachnoid membrane
Antonyms: none provided
Broader terms: meninx, meninges
History
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.
Across languages
8 source translations are retained for this English entry.
