7 the operating mechanism, esp. in a piano, gun, watch, etc. 8 (of a guitar) the distance between the strings and the fingerboard. 9 (of keyboard instruments) the sensitivity of the keys to touch. 10 the force applied to a body. the reaction is equal and opposite to the action.
Quick Answer. The Hawaiian happy face spider, Theridion grallator, is not poisonous. While the arachnid belongs to the same family as the feared black widow, it lacks the toxic venom. The species is named for the array of color patterns across the abdomen, some of which resemble a smiling face. Continue Reading.
Of those that are considered toxic, only the Brazilian wandering spider, the funnel web spiders, some of the widow spiders, the Chilean Recluse spider and the Chinese bird spider, which is a type of tarantula, have caused fatalities. The bites are much more dangerous to small children and the elderly.