rain stick
— Navneord
– Engelsk
~ a percussion instrument that is made from a dried cactus branch that is hollowed out and filled with small pebbles and capped at both ends; makes the sound of falling rain when tilted; origin was in Chile where tribesmen used it in ceremonies to bring rain
reinforcing stimulus
— Navneord
– Engelsk
~ (psychology) a stimulus that strengthens or weakens the behavior that produced it
roughtail stingray
— Navneord
– Engelsk
~ one of the largest stingrays; found from Cape Cod to Cape Hatteras
raise a stink
— Udsagnsord
– Engelsk
~ take strong and forceful action, as to object or express discontent; "She raised hell when she found out that she wold not be hired again"