to click a mouse button twice in rapid succession, as to open a program or select a file:
Double-click on the desktop icon.
verb (used with object)
2.
to double-click (a mouse button) or double-click (a program, file, etc.)
Origin
1980-85
Related forms
double click, noun
double-click in Technology
operating system Two clicks of a mouse button made in rapid succession without moving the mouse. A double-click often combines the actions of selecting, and then activating an object in a GUI, e.g. selecting and opening a document. Some text editors use double-click to select the word under the mouse pointer. When used as a verb it is often written as two words with a space instead of a hyphen. (2006-07-09)