Arachnida

(redirected from Arachnids)
Also found in: Dictionary, Thesaurus, Medical.
Related to Arachnids: Myriapods

Arachnida

[ə′rak·nəd·ə]
(invertebrate zoology)
A class of arthropods in the subphylum Chelicerata characterized by four pairs of thoracic appendages.
References in periodicals archive ?
Aggregation, extended mother-offspring-sibling interactions, and complex social behaviors are extremely rare among arachnids.
They bring the number of known peacock spider species up to 43 with Otto and collaborator David Hill, who's just as passionate about these gorgeous arachnids, being involved in the naming of more than 20 of them.
Old friend and former neighbour Cindy tells me that when her son Dan Isherwood was in the Army, the arachnids were rather larger.
This is bad news if you are not fond of the nightmarish arachnids that lay over 100 eggs at a time.
James Ship, an expert at Stratford Butterfly Farm, which also houses arachnids, said if bitten by the spider "you would have about six hours' worth of pain".
I don't like spiders, so it's with great surprise that I find myself reading and re-reading the definitive guide to arachnids in Cyprus.
TEHRAN (FNA)- Stunning images of a 305-million-year-old harvestman fossil reveal ancestors of the modern-day arachnids had two sets of eyes rather than one.
The scientists at the University of Manchester in UK and the American Museum of Natural History in New York unearthed the fossil in eastern France, which can help in understanding the evolutionary history of harvestmen - a group of arachnids generally referred as daddy longlegs found in North America and the UK.
ANSWERS: 1 Thirty-two; 2 Staffordshire; 3 A heart; 4 Oran; 5 Singapore; 6 A gaggle; 7 George I; 8 Calvin and Hobbes; 9 Embarrassing Illnesses; 10 Arachnids.
They also include many illustrations of fossils in amber or stone, with explanations for how they became fossilized, and color photographs of some living arachnids for comparison.
Washington, August 28 ( ANI ): An international team of scientists has discovered the oldest record of arthropods-invertebrate animals that include insects, arachnids, and crustaceans-preserved in amber.