<p><strong>Noun</strong></p><ul><li>the act of inserting: the insertion of a coin in a vending machine.</li><li>something inserted: an insertion in the middle of a paragraph.</li><li>the manner or place of attachment, as of an organ.</li><li>attachment of a part or organ, with special reference to the site or manner of such attachment.</li><li>lace, embroidery, or the like, to be sewn at each edge between parts of other material.</li><li>injection (def 6).</li></ul>