a form of play in which a very young child plays independently in the presence of another child or other children.
- Parallel port
noun 1. (computing) (on a computer) a socket that can be used for connecting devices that send and receive data at more than one bit at a time; often used for connecting printers hardware An interface from a computer system where data is transferred in or out in parallel, that is, on more than one […]
noun, Geometry. 1. the axiom in Euclidean geometry that only one line can be drawn through a given point so that the line is parallel to a given line that does not contain the point. parallel postulate See under Euclidean.
- Parallel presence detect
noun, Geometry. 1. a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.