scorpion(redirected from Scorpionidea)
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A member of the order Scorpionida; includes the devil scorpion, Vejovis, and the hairy scorpion, Hadrurus.
Medical entomology A nocturnal arachnid found mostly in tropical and subtropical zones and in some temperate regions; scorpions most common in the US are Centruroides gertschi and C sculpturatus, which cause systemic disease through the cholinergic effects of their venom
scorpionMedical entomology A nocturnal arachnid native to the hot, dry regions of the southwestern US and Mexico–the spp in Mexico are more toxic; scorpions most common in the US are Centruroides gertschi and C sculpturatus, which cause systemic disease through the cholinergic effects of their venom. See Scorpion sting.
eight-legged, venomous arthropod of varying sizes but all possessing massive claws at the head and a flexible, segmented tail, which is carried in a characteristic forward curve over the back and has a sting in it. The neurotoxin produced causes severe pain and numbing at the site but there is not usually sufficient to cause paralysis of a human. There are several species, including Tityus, Centruroides, Androctonus.