arachnoid vs spider

spider vs arachnoid

arachnoid and spider both are nouns.

arachnoid is an adjective but spider is not an adjective.

Word	Noun	Adjective	Verb	Adverb
arachnoid	Yes	Yes	No	No
spider	Yes	No	No	No

As nouns, spider is a hyponym of arachnoid; that is, spider is a word with a more specific, narrower meaning than arachnoid:

arachnoid: air-breathing arthropods characterized by simple eyes and four pairs of legs
spider: predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey

Other hyponyms of arachnoid include daddy longlegs, harvestman, Phalangium opilio, scorpion, false scorpion, pseudoscorpion, whip-scorpion, whip scorpion, acarine.

arachnoid (noun)	spider (noun)
air-breathing arthropods characterized by simple eyes and four pairs of legs	predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey
the middle of the 3 meninges	a skillet made of cast iron
	a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine

arachnoid (adjective)	spider (adjective)
relating to or resembling a member of the class Arachnida

Difference between arachnoid and spider

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