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.
Most spider bites are not poisonous; symptoms are much like those for a bee sting, including red skin, swelling, and pain at the bug bite site. Some people may develop an allergic reaction, with symptoms such as tightness in the chest, breathing problems, swallowing difficulties, or swelling of the face.