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.
In addition to the lists below, I have many links on my Venomous Links page that may assist in learning about the dangerously venomous spiders in your area. 1  Alabama Brown Recluse - Loxosceles reclusa. Brown Widow - Latrodectus geometricus. 2  Alaska Hobo Spider or Aggressive House Spider - Tegenaria agrestis.