Brazilian Wandering Spider (OurBreathingPlanet/Flickr). The Brazilian Wandering spider isnât the worldâs biggest spider with itâs 5.9-inch leg span, but it does have one of the deadliest venoms. This spiderâs venom rarely kills humans, but its bite will make you writhe in pain.
Lock definition, a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc. 2. a contrivance for fastening or securing something. 3. the mechanism that explodes the charge; gunlock. safety (def 4).
The Lock button prevents other people from accessing your computer or viewing your work. It's an ideal way to protect your computer when you need to step away to the bathroom or to lunch. It's also much quicker to lock and unlock your computer for short periods than to shut it down or put it into a power-saving mode such as sleep.