Definitions for "Membrane keyboard"
A computer input device that is a flat keyboard with pressure sensitive switches located under a soft surface. The user activates the device by pressing on the surface.
a computer keyboard whose "keys" aren't separate, moving parts, as in most other types of keyboard, but rather just have their outlines and symbols printed on flat surface
A flat keyboard with programmable keys. This keyboard allows persons with limited and varied strength to input information into a computer. If, for instance, the user has more strength in his or her thumbs and little fingers, frequently used letters such as a and s and function keys such as ENTER and SPACE would be programmed within the reach of these appendages.