Definition of: insertion

(in·sûr′shən) noun
1. The act of inserting, or the state of being inserted.
2. That which is inserted, as lace or embroidery placed between pieces of plain fabric.
3. Bot. Place or mode of attachment, as of a leaf to a branch.
4. Anat. The end of a muscle that is attached to the bone or part which it moves.
5. A word, paragraph, or written material inserted in a written or printed page; also, an advertisement in a newspaper. See INSERT.