or weakly interacting massive particles,
figure into one explanation of the dark matter
The particles are called "weakly interacting" because they seem not to have much interaction with normal matter (electrons
, and neutrons
other than gravitational
attraction (thus "massive").
In human-computer interaction
stands for the "window, icon, menu, pointing device" paradigm that characterizes most commercial graphical user interfaces
to the present. It was developed at the Xerox Parc
. See History of the graphical user interface
A Wimp is a person who lacks confidence, is irresolute and wishy-washy.