Here, beyond any doubt of mine, a porcupine had thrown quills from the dingle floor to its roof, a distance of over six feet. To clinch the matter I tapped his nose with the rod case when he started for the door, which made him turn and bristle up again.
A div tag defines a division (or section) of a HTML document. DIV elements can be used to structure HTML documents as a hierarchy of divisions. So it would be fair to say that 'div' is short for 'division'. You have to go back to the specification for HTML 3.2 to find that out though, as it isn't stated at all in any newer specifications. Here is the link: http://www.w3.org/TR/REC-html32#div.
LV, Light Value and EV, Exposure Value, are terms used to allow easy discussion of exposure and light without the confusion of the many equivalent combinations shutter speeds and apertures. LV refers to how bright the subject is. EV is the exposure setting on the camera. You may have seen them if you like to read the fine print of camera specifications. They are used to specify ranges of light levels for metering and autofocus.