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click

1. 
a. the locking member of a ratchet mechanism, such as a pawl or detent
b. the movement of such a mechanism between successive locking positions
2. US and Canadian slang a kilometre
3. Computing an act of pressing and releasing a button on a mouse

click

[klik]
(communications)
A short-duration electric disturbance, such as that sometimes produced by a code-sending key or a switch.
(computer science)
To select an object when the pointer is touching it by pressing and quickly releasing a button on a mouse.
(engineering acoustics)
A perforation in a sound track which produces a clicking sound when passed over the projector sound head.

click

(hardware)
To press and release a button on a mouse or other pointing device. This generates an event, also specifying the screen position, which is processed by the window manager or application program.

On a mouse with more than one button, the unqualified term usually implies pressing the left-most button (with the right index finger), other buttons would be qualified, e.g. "right-click". Multiple clicks in quick succession, e.g. a double-click, often have a different meaning from slow single clicks. Keyboard modifiers may also be used, e.g. "shift-click", meaning to hold down the shift key on the keyboard while clicking the mouse button.

If the mouse moves while the button is pressed then this is a drag.

click

(1) See CLIQ.

(2) To select an object by pressing the mouse button when the cursor is pointing to the required menu option, icon or hypertext link. See click and drag and tap.

(2) One click is one kilometer. This military term is sometimes used by telecom people for line distances in large networks. See metric system.
References in periodicals archive ?
Clicking polymers: a straightforward approach to novel macromolecular architectures.
Move your graphs into position by clicking and dragging the new graphs into vertical alignment of the multiple baseline formats.
Experts may volunteer because clicking on what they are reading anyway is so easy--and gives them influence over what is recognized as important.
The TMS Lite version is accessed by clicking the switch to TMS Lite button on the main menu.
Its core navigation device is a table of contents managed by a pale grey silhouette of a bloke who leans down and points to the topic you are clicking on.
Serving as the online component to American Forests' larger Global ReLeaf program, Web ReLeaf has accounted for the planting of more than 160,000 trees across the United States in little more than one year of operation, thanks to the eager clicking of site visitors and the generosity of sponsors such as retailer Batteries Plus.
Clicking on the grayed-out button or selecting the grayed-out choice on a menu does nothing.
Summary: I've been clicking the button to have my Web browser save user names and passwords ...
Start by opening a new Excel workbook and clicking on the cell where you want the database information you will be downloading to begin.
At the bottom of the AMDF screen are Previous NSN and Next NSN buttons, Clicking on the buttons allows you to navigate among the tagged NSNs.
Bile subsiding, you start clicking at random and though it would be useful to have a page full of thumbnails, the interesting ones of which you could enlarge, it's probably easiest to browse by hitting the Completion Date tab and starting at the top date, 2006, start peeking at the projects.
Resident killer whales change the speed of their clicking gradually.