- The act of including or the state of being included.
- Something included.
- Geology. A solid, liquid, or gaseous foreign body enclosed in a mineral or rock.
- Biology. A nonliving mass, such as a droplet of fat, in the cytoplasm of a cell.
- Computer Science. A logical operation that assumes the second statement of a pair is true if the first one is true.
[Latin inclūsiō, inclūsiōn-, from inclūsus, past participle of inclūdere, to enclose. See include.]
inclusionary in·clu'sion·ar'y (-zhə-nĕr'ē) adj.




