In·ser·tion n.
  1. The act of inserting; as, the insertion of scions in stocks; the insertion of words or passages in writings.
  2. The condition or mode of being inserted or attached; as, the insertion of stamens in a calyx.
  3. That which is set in or inserted, such as a word or passage in a composition, or a narrow strip of embroidered lace, muslin, or cambric; as, there were numerous insertions and corrections to the first draft.
  4. Anat. The point or part by which a muscle or tendon is attached to the part to be moved; -- in contradistinction to its origin.
  Epigynous insertion Bot., the insertion of stamens upon the ovary.
  Hypogynous insertion Bot., insertion beneath the ovary.
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