- (in a mixed number) the position of the first digit to the left of the decimal point.
- (in a whole number) the position of the first digit from the right of the decimal point.
- the measured amount of a substance necessary to cause a certain effect; a clinical quantity used when a substance cannot be readily isolated in pure form and its activity determined directly.
- the amount necessary to cause a specific effect upon a specific animal or upon animal tissues.
- an identity element.
- an element in a group, ring, etc., that possesses an inverse.
Origin of unit
Examples from the Web for unit
Contemporary Examples of unit
The unit is used to attack foreign networks, and either it or a sister organization was involved in the Sony hack.U.S. Should Make North Korea Pay for Sony Hack
Gordon G. Chang
December 18, 2014
“We were part of the unit protecting gas and oil depots outside of Kirkuk,” Rashid says.
Her unit first deployed in late June—“A very hot summer,” she remembers.
Keep the location work to second unit so I wouldn't have to be away from Alma?Alfred Hitchcock’s Fade to Black: The Great Director’s Final Days
December 13, 2014
At the same time, the Marines and spouses in the unit shared day-to-day information on a group Facebook page.War Is About More Than Heroes, Martyrs, and Patriots
Nathan Bradley Bethea
November 12, 2014
Historical Examples of unit
Neither evolution nor involution will ever effect the value of a unit.
At all events, it is as impossible to demonstrate the non-existence of the one unit as the other.
Values are reckoned in “skins”—that is, a “skin” is the unit of value.The Long Labrador Trail
I saw myself now as part of the whole, a unit in the sum of a life which interested me.The First Violin
And, for the size-change, a normal diameter, Unit 1—and then up into thousands.The World Beyond
Raymond King Cummings
- (usually plural)the first position in a place-value counting system, representing a single-digit numberin the decimal system the number 27 has 7 units and 2 tens
- (modifier)having a value defined as one for the systemunit vector
Word Origin for unit
1560s, "single number regarded as an undivided whole," alteration of unity on the basis of digit. Popularized in John Dee's English translation of Euclid, to express Greek monas (Dee says unity formerly was used in this sense). Meaning "single thing regarded as a member of a group" is attested from 1640s. Extended sense of "a quantity adopted as a standard of measure" is from 1738. Sense of "group of wards in a hospital" is attested from 1893.