Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various arthropods of the class Arachnida, such as spiders, scorpions, mites, and ticks, characterized by four pairs of segmented legs and a body that is divided into two regions, the cephalothorax and the abdomen. Also called arachnoid.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of the eight-legged creatures, including spiders and scorpions, of the class Arachnida

from the GNU version of the Collaborative International Dictionary of English

  • n. An arachnidan.

from The Century Dictionary and Cyclopedia

  • n. One of the Arachnida; an arachnidan.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. air-breathing arthropods characterized by simple eyes and four pairs of legs

Etymologies

From New Latin Arachnida, class name, from Greek arakhnē, spider.
(American Heritage® Dictionary of the English Language, Fourth Edition)
French arachnide (1809, Lamarck), from Ancient Greek ἀράχνη ("spider"). (Wiktionary)

Examples

  • Venom as big slobbering fanged crazyman, with a bit of a thing for wanting to indulge in arachnid appetisers is what you find here.

    Science Fiction, Fantasy, Horror: Venom Factor - Diane Duane

  • This house has at least two long-term arachnid tenants.

    Blue Screen of Death and the Spiders of Mayhem

  • His case is just one of a dozen this year in which Japanese have been nipped by this Australian arachnid, which is spinning its silk web from Nagoya to Fukuoka, to Osaka.

    Japundit - Published news

  • Mama, of course, was way sicker than either Mason or I, so she stayed home, which was probably for the best if only because Mason got to not only hold a Madagascar hissing cockroach (who LOVED the warm, moistness of his palm and nearly settled in for the evening,) but also a whip scorpion (which isn't really a scorpion at all, but a kind of arachnid related to the daddy-longlegs called a "harvestmen."

    Day in the Life of an Idiot

  • The fine-lined 11x14 image features farmgirl Fern Arable clutching Wilbur the saved-from-slaughter pig, as the literate arachnid Charlotte spins her magic above the livestock.

    'CHARLOTTE'S WEB' cover art snares $155K at auction

  • "Buggy" is the collective noun for clowns, so it makes perfect sense that Cirque du Soleil's arachnid extravaganza, "Ovo," at the Santa Monica Pier, is peopled insected? with a dazzling array of bugs.

    James Scarborough: "Ovo," Cirque du Soleil, Santa Monica Pier

  • Last Saturday I saw this arachnid on a tree in the park near my house.

    Archive 2009-06-01

  • In Sam Raimi's three Spider-Man movies starring Tobey Maguire, the film franchise decided to tinker with comic-book history and grant Peter Parker the biological powers to spin string -- as a result of that irradiated arachnid bite.

    STAN LEE reacts to big-screen Spider-Man's new look

  • In each of the locations the arachnid architecture is much the same: a female spider winches together two or more stems of the hollow stalks and then wraps around the point where they touch a protected couch of white silk.

    Country diary: Claxton, Norfolk

  • Fried scorpions on a miniature mountain of glass noodles in Beijing, artfully arranged to simulate fearsome arachnid battle.

    Fare Play Around The World

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