- A fixed amount of work used as a basis in awarding scholastic credits, usually determined by the number of hours spent in class.
- The amount of a drug, vaccine, serum, or antigen needed to produce a given result, as on a certain animal or on animal tissues.
An example of a unit is a single apartment in an apartment building.
This pill provides 500 units of Vitamin E.
He was a member of a special police unit.
The fifth tank brigade moved in with 20 units. (i.e., 20 tanks)
We shipped nearly twice as many units this month as last month.
We have to keep our unit costs down if we want to make a profit.