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.
Effects of a Brown Recluse Bite. Recluse spiders really don't mean to cause any trouble to humans. Overview. Recluse spiders--also known as violin spiders or fiddleback spiders, owing to the distinctive violin-shaped marking on their backs just behind the eyes--are one of the few species of spiders known to cause medically significant bites.