n.
Pronunciation: ' yü-n ə t
Function: noun
Etymology: back-formation from unity
Date: 1570
1 a : the first and least natural number : ONE b : a single quantity regarded as a whole in calculation
2 : a determinate quantity (as of length, time, heat, or value) adopted as a standard of measurement: as a : an amount of work used in education in calculating student credits b : an amount of a biologically active agent (as a drug or antigen) required to produce a specific result ― compare INTERNATIONAL UNIT
3 a : a single thing, person, or group that is a constituent of a whole b : 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 function d : a part of a school course focusing on a central theme e : a local congregation of Jehovah's Witnesses f : a small molecule especially when combined in a larger molecule <repeating unit s 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 >