Examples. 1  I need a tricorder - the convenient, hand-held device featured on Star Trek that can detect life forms even from orbit. Citizendium, the Citizens' Compendium - Recent changes [en] 2  I need a tricorder - the convenient, hand-held device featured on Star Trek that can detect life forms even from.
I should mention that width and length are often interchangeable in representing the same concept - they are distinguished in relation to one another (a box may be thought of as having a 5-inch width and 6-inch length, or a 5-inch length and 6-inch width. Height is usually understood to be the dimension going upwards.
Dimensions are what we measure size in. The first is length/height,  the second is width/breadth, the third is depth and the fourth is  time. Movies have three dimensions which are length, width and  time. A picture has only two and a line on paper supposedly has one  and real life has all four.