injecˈtion /-shən/ noun

1. The act of injecting, introducing or forcing in, esp a liquid
2. Something injected, esp a liquid injected into the body with a syringe or similar instrument
3. A magma injected into a rock (geology)
4. The spraying of fuel into the cylinder of a compression-ignition engine by an injection pump (motoring)
5. The putting of a man-made craft or satellite into orbit (also insertion)
6. An amount of money added to an economy in order to stimulate production, expansion, etc
7. A mapping function in which each element in a set corresponds to only one element in another set (mathematics)

injecˈtive adjective (mathematics)

Of or relating to injection

injecˈtor noun

1. A person who injects
2. Something used for injecting, esp an apparatus for forcing water into a boiler

injecˈtion-moulded adjective

injection moulding noun

The moulding of thermoplastics by squirting the material from a heated cylinder into a water-chilled mould

injection string noun (mining)

A pipe run in addition to the production string in the borehole to allow the passage of additives or of drilling mud to stop the well (also called kill string)

insert /in-sûrtˈ/

1. To put in
2. To introduce (into)

1. Something inserted
2. A loose sheet placed within the folds of a newspaper or periodical, as a supplement or containing advertising material
3. Insert mode

insertˈable adjective

insertˈed adjective (botany)

Attached to or growing out of another member

insertˈer noun

insertion /in-sûrˈshən/ noun

1. The act of inserting
2. Something inserted
3. The mode or condition of being inserted
4. The part of a muscle by which it is attached to the part to be moved, eg the point or place of attachment to a bone (anatomy)
5. A piece of embroidery, lace, etc inserted in a dress, etc
6. The putting of a man-made craft or satellite into orbit (also injection)

inserˈtional adjective

insert key noun (computing)

A key that switches between insert and overwrite modes

insert mode noun

A word processing facility whereby typed characters are added without replacing existing characters