1. (n.) The act of inserting; as, the insertion of scions in stocks; the insertion of words or passages in writings.

2. (n.) The condition or mode of being inserted or attached; as, the insertion of stamens in a calyx.

3. (n.) That which is set in or inserted, especially a narrow strip of embroidered lace, muslin, or cambric.

4. (n.) The point or part by which a muscle or tendon is attached to the part to be moved; -- in contradistinction to its origin.

Earth insertion LEM LM access admission apogee aside attitude-control rocket ballistic capsule booking burn capsule cataloging chronicling deep-space ship docking docking maneuver enlistment enrollment entering entrance entree entry episode ferry rocket fuel ship impanelment import importation importing income incoming indexing infiltration infix ingoing ingress ingression injection inlay input inscribing inscription insert inset insinuation intake intercalation interjection interlineation interlocution interpenetration interpolation introduction introgression intrusion inventorying leakage listing logging lunar excursion module lunar module manned rocket matriculation module moon ship multistage rocket obiter dictum orbit parenthesis parking orbit penetration percolation perigee posting reception record keeping recordation recording reentry register registration registry remark rocket seepage shuttle rocket side remark soft landing space capsule space docking space rocket spacecraft spaceship tabulation tessera tossing-in