n]
| 1. | the act of including. |
| 2. | the state of being included. |
| 3. | something that is included. |
| 4. | Biology. a body suspended in the cytoplasm, as a granule. |
| 5. | Mineralogy. a solid body or a body of gas or liquid enclosed within the mass of a mineral. |
| 6. | Petrography. xenolith. |
| 7. | Logic, Mathematics. the relationship between two sets when the second is a subset of the first. |
inclusion in·clu·sion (ĭn-kl&oomacr;'zhən)
n.
A nonliving mass, such as a droplet of fat, in the cytoplasm of a cell.
The process by which a foreign or heterogenous structure is misplaced in another tissue.
| xenolith (zěn'ə-lĭth', zē'nə-) Pronunciation Key
A rock fragment foreign to the igneous mass in which it occurs. Xenoliths usually become incorporated into a cooling magma body when pieces of the rock into which the magma was injected break off and fall into it. Compare xenocryst. |