A sedative or tranquilizer (or tranquilliser, see American and British English spelling differences) is a substance that induces sedation by reducing irritability or excitement. At higher doses it may result in slurred speech, staggering gait, poor judgment, and slow, uncertain reflexes.oses of sedatives such as benzodiazepines, when used as a hypnotic to induce sleep, tend to be higher than amounts used to relieve anxiety, whereas only low doses are needed to provide a peaceful effect.
1 Scab, a hard coating on the skin formed during the wound healing reconstruction phase.  scAb, single-chain antibody fragment.
If you've ever wondered how scabs form, it is important to first understand what it is and why it happens. Scabs is an unattractive name for an unseemly body function that, however, serves an important purpose. When we fall, scrape or otherwise injure our bodies in a way that causes bleeding, it is the formation of scabs that promotes healing and keeps wounds from becoming infected.