enclusion

Noun

inclusion (countable and uncountable, plural inclusions)

1. (countable) An addition or annex to a group, set, or total.
   • The poem was a new inclusion in the textbook.
2. (uncountable) The act of including, i.e. adding or annexing, (something) to a group, set, or total.
   • The inclusion of the poem added value to the course.
3. (countable) Anything foreign that is included in a material.
4. (countable) Any material that is trapped inside a mineral during its formation, as a defect in a precious stone.
   • The fewer inclusions a diamond has, the better is its clarity and value. Often the inclusions can be cut out of a diamond in the rough.2009, Cindy Lasiter, Diamonds in the Rough, Xulon Press, →ISBN, page xi
5. A nuclear or cytoplasmic aggregate of stainable substances.
6. An object completely inside a tissue, such as epidermal inclusion cyst, a cyst in the epidermis.

See all 8 meanings of inclusion