Noun

(en noun)

(sciences) A standard measure of a quantity.

The centimetre is a unit of length.

The number one.

This pill provides 500 units of Vitamin E.

An organized group comprising people and/or equipment.

He was a member of a special police unit .

(military, informal) A member of a military organization.

The fifth tank brigade moved in with 20 units .'' (''i.e., 20 tanks )

(US, military) Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organizationJoint Publication 1-02 U.S. Department of Defense Dictionary of Military and Associated Terms; 12 April 2001 (As Amended Through 14 April 2006). .

(US, military) An organization title of a subdivision of a group in a task force.

(US, military) A standard or basic quantity into which an item of supply is divided, issued or used. In this meaning, also called unit of issue.

(US, military) With regard to Reserve Components of the Armed Forces, denotes a Selected Reserve unit organized, equipped, and trained for mobilization to serve on active duty as a unit or to augment or be augmented by another unit. Headquarters and support functions without wartime missions are not considered units.

(algebra) An element of a ring having a multiplicative inverse. (Formerly just the identity element 1_R of a ring.)

(geology) A volume of rock or ice of identifiable origin and age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.

(commerce) An item which may be sold singly.

We shipped nearly twice as many units this month as last month.

(UK, electricity) One kilowatt-hour (as recorded on an electricity meter).

(Australia, New Zealand) a measure of housing equivalent to the living quarters of one household, an apartment where a group of apartments is contained in one or more multi-storied buildings or a group of dwellings is in one or more single storey buildings, usually arranged around a driveway.

(historical) A gold coin of the reign of James I, worth twenty shillings.

(Camden)

Noun

(en noun)

a part, or component of a whole

* Tyndall

We know how to bring these constituents together, and to cause them to form water.

The person or thing which constitutes, determines, or constructs.

* Sir M. Hale

Their first composure and origination require a higher and nobler constituent than chance.

A resident of a place represented by an elected official.

* Macaulay

To appeal from the representatives to the constituents .

* {{quote-news

, year=2012 , date=April 19 , author=Josh Halliday , title=Free speech haven or lawless cesspool – can the internet be civilised? , work=the Guardian citation , page= , passage=But the purported rise in violent videos online has led some MPs to campaign for courts to have more power to remove or block material on YouTube. The Labour MP Heidi Alexander said she was appalled after a constituent was robbed at knifepoint, and the attackers could be found brandishing weapons and rapping about gang violence online.}}

(legal) One who appoints another to act for him as attorney in fact.

(Burrill)

(grammar) A functional element of a phrase or clause.

*

Thus, the postulation of a Noun Phrase'' constituent is justified on morphological grounds, since it is not obvious how we could describe the grammar of the genitive 's inflection in English without saying that it's a ''Noun Phrase inflection.