a Gestalt principle of organization holding that (other things being equal) objects or events that are near to one another (in space or time) are perceived as belonging together as a unit
a Gestalt principle of organization holding that (other things being equal) parts of a stimulus field that are similar to each other tend to be perceived as belonging together as a unit
a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person
anything immaterial that severely hinders or confines; "they defected because Russian dance was in a straitjacket"; "the government is operating in an economic straitjacket"
bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow