embedding

noun8

1. •
   The act or process by which one thing is embedded in another.
2. •
   A representation of a unit of text (such as a word or token) as a vector, which encodes the context in which it is used.
3. •
   A map which, in any of several technical senses, represents the containment of one structure inside another.
4. •
   A continuous map which is also a homeomorphism between its domain and its image (considered with the subspace topology induced by its codomain).
5. •
   An immersion which is also a topological embedding; equivalently, a diffeomorphism whose image is a submanifold of its codomain.
6. •
   A ring homomorphism between fields (the name deriving from the fact that all such maps are injective).
7. •
   A map between metric spaces which preserves distances up to some scaling factor (called the distortion).
8. •
   An injective morphism in a concrete category which is also initial.