1

unit

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noun \ˈyü-nət\

Definition of unit

  1. 1a :  the first and least natural number :  oneb :  a single quantity regarded as a whole in calculation

  2. 2 :  a determinate quantity (as of length, time, heat, or value) adopted as a standard of measurement: such asa :  an amount of work used in education in calculating student creditsb :  an amount of a biologically active agent (as a drug or antigen) required to produce a specific result — compare international unit

  3. 3a :  a single thing, person, or group that is a constituent of a wholeb :  a part of a military establishment that has a prescribed organization (as of personnel and materiel)c :  a piece or complex of apparatus serving to perform one particular functiond :  a part of a school course focusing on a central themee :  a local congregation of Jehovah's Witnessesf :  a small molecule especially when combined in a larger molecule <repeating units of a polymer>g :  an area in a medical facility and especially a hospital that is specially staffed and equipped to provide a particular type of care <an intensive care unit>

Examples of unit in a sentence

  1. The family is the basic unit of society.

  2. The search party broke up into smaller units.

  3. Their army unit guarded the border.

  4. Feet and meters are units of length.

  5. The dollar is the principal unit of American currency.

Origin and Etymology of unit

back-formation from unity


First Known Use: 1570

Other Number-Related Terms


2

unit

adjective

Definition of unit

  1. :  being, relating to, or measuring one unit

1633

First Known Use of unit

1633

Other Mathematics and Statistics Terms



UNIT Defined for English Language Learners

1

unit

play
noun \ˈyü-nət\

Definition of unit for English Language Learners

  • : a single thing, person, or group that is a part of something larger

  • : a part of a hospital where a particular type of care is provided

  • : a particular amount of length, time, money, etc., that is used as a standard for counting or measuring


UNIT Defined for Kids

unit

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noun \ˈyü-nət\

Definition of unit for Students

  1. 1 :  a single thing, person, or group forming part of a whole <There are 36 units in my apartment building.>

  2. 2 :  the least whole number :  one

  3. 3 :  a fixed quantity (as of length, time, or value) used as a standard of measurement <An inch is a unit of length.>

  4. 4 :  a part of a school course with a central theme


Medical Dictionary

unit

play
noun \ˈyü-nət\

Medical Definition of unit

  1. 1:  an amount of a biologically active agent (as a drug or antigen) required to produce a specific result under strictly controlled conditions <a unit of penicillin>—see international unit

  2. 2:  a small molecule especially when combined in a larger molecule <repeating units of a polymer>

  3. 3:  an area in a medical facility and especially a hospital that is specially staffed and equipped to provide a particular type of care <an intensive care unit>


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