class arachnida is a noun meaning "a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings". It carries one recorded sense.
a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings
Definitions, synonyms and semantic relations for class arachnida come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.