di·men·sion 
(d
-m
n
sh
n, d
-)
(d-mnshn, d-)
n.
1. A measure of spatial extent, especially width, height, or length.
2. Extent or magnitude; scope. Often used in the plural: a problem of alarming dimensions.
3. Aspect; element: "He's a good newsman, and he has that extra dimension" (William S. Paley).
4. Mathematics
a. The least number of independent coordinates required to specify uniquely the points in a space.
b. The range of such a coordinate.
5. Physics A physical property, such as mass, length, time, or a combination thereof, regarded as a fundamental measure or as one of a set of fundamental measures of a physical quantity:Velocity has the dimensions of length divided by time.
tr.v. di·men·sioned, di·men·sion·ing, di·men·sions
1. To cut or shape to specified dimensions.
2. To mark with specified dimensions.
[Middle English dimensioun, from Latin dm
nsi
, dmnsin-, extent, from dmnsus, past participle of dmtr, to measure out : d-, dis-, dis- + mtr, to measure; see m-2 in Indo-European roots.]
mnsi, dmnsin-, extent, from dmnsus, past participle of dmtr, to measure out : d-, dis-, dis- + mtr, to measure; see m-2 in Indo-European roots.]
di·mension·al adj.
sion·al adj.
di·men
sion·ali·ty (-sh-n
l-t) n.
sion·ali·ty (-sh-nl-t) n.
di·mension·al·ly adv.
sion·al·ly adv.
di·mension·less adj.
sion·less adj.