## Definition of compact

**:**having a dense structure or parts or units closely packed or joined

- a compact woolen

- compact bone

**:**not diffuse or verbose

- a compact statement

**:**occupying a small volume by reason of efficient use of space

- a compact camera

- a compact formation of troops

**:**short-bodied, solid, and without excess flesh

- He had a small, compact body that looked full of life.
- —D. H. Lawrence

**:**being a topological space and especially a metric space with the property that for any collection of open sets which contains it there is a subset of the collection with a finite number of elements which also contains it