Definitions for arachnidəˈræk nɪd
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Random House Webster's College Dictionary
a•rach•nidəˈræk nɪd(n.)
any of numerous wingless, carnivorous arthropods of the class Arachnida, comprising spiders, scorpions, mites, and ticks, characterized by a two-segmented body with eight appendages and no antennae.
Category: Entomology
Origin of arachnid:
1865–70; < NL Arachnida < Gk aráchn(ē) spider, spider's web + NL -ida -ida
a•rach′ni•dan(adj.; n.)
Princeton's WordNet
arachnid, arachnoid(noun)
air-breathing arthropods characterized by simple eyes and four pairs of legs
Wiktionary
arachnid(Noun)
Any of the eight-legged creatures, including spiders and scorpions, of the class Arachnida
Origin: arachnide (1809, Lamarck), from ἀράχνη.
Webster Dictionary
Arachnid(noun)
an arachnidan
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