/inˈklo͞oZHən/
Noun, pl. inclusions
(Science)
1. A foreign substance, either liquid or solid, usually of minute size, enclosed in the mass of a mineral. (biology-online.org)
2. (Geology) A solid, liquid, or gaseous foreign body enclosed in a mineral or rock. (thefreedictionary.com)
3. (Biology) A nonliving mass, such as a droplet of fat, in the cytoplasm of a cell. (thefreedictionary.com)
4. (Computer Science) A logical operation that assumes the second statement of a pair is true if the first one is true. (thefreedictionary.com)
(General)
1. The act of including or the state of being included. (biology-online.org)
2. Something included. (thefreedictionary.com)
Word origin: From Latin inclusionem (nominative inclusio) “a shutting up, confinement,” noun of action from past participle stem of includere