For all practical purposes arachnidism is substantial envenomation by a spider bite, their bites otherwise being medically insignificant.
en.wikipedia.org Depending on the species of spider and the victim, arachnidism will have various effects, ranging from going practically unnoticed, through transient pain, to gangrene, or fatal neurotoxicity.
en.wikipedia.org Her on-board facilities included a foundry, light and heavy machine shops, electrical and torpedo repair shops, and equipment to support fitters, patternmakers, coppersmiths and shipwrights.
en.wikipedia.org Later, they chopped up their victims and fed them through a mincing machine.
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