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.
Gila monster (Heloderma suspectum). Tim FlachStone/Getty Images. The only two poisonous lizards in the world are the Gila monster (Heloderma suspectum) of the southwestern United States and the beaded lizard (Heloderma horridum) of Mexico.ow readers of your website, blog-post, or any other web content can enjoy full access to this article on lizard, or any other Britannica Online for Kids premium article for free, even if they do not have a membership.