NOUN

any division of quantity accepted as a standard of measurement or exchange
change per unit volume
the dollar is the United States unit of currency
a unit of wheat is a bushel
How To Use unit of measurement In A Sentence
 A nit is a unit of measurement used to describe screen brightness; one nit equals one candela per square meter and the more nits, the brighter the display. Postgazette.com  News
 The OHM, as a unit of measurement, equals a unit of _resistance_ that is equivalent to the resistance of a hundred feet of copper wire the size of a pin. Steam, Steel and Electricity
 Way back in 1958, the MIT chapter of the Lambda Chi Alpha fraternity used pledge Oliver R. Smoot to measure the Harvard Bridge in Massachusetts, coining the smoot as a unit of measurement in the process  one smoot equaling five feet, seven inches. Neatorama
 The usual modern method is to use the vertical length of the head as a unit of measurement.
 Japan, of course, uses that ohsotraditional unit of measurement known as the tatami mat, and the size of a room is always expressed in how many tatami would fit inside, even if it's a traditional Western room with wooden flooring. Anime Nano!
 Ampère also devised a rule governing the mutual interaction of currentcarrying wires (known as Ampère's law) and defined the unit of measurement for current flow, now known as the ampère. Ampère, André Marie
 This is the antilog in terms of the original unit of measurement that defines the 50th percentile.
 From there, sizing descendant elements with ems (a relative unit of measurement) becomes much more logical: 1em is 10 px, 1.6em is 16 px, .9em is 9px, and so forth.
 A megapixel is a unit of measurement for the resolution of digital cameras. Everything2 New Writeups
 A number and its unit of measurement are hyphenated if they modify another noun.