Retention /(?)/

Re·ten·tion

Retention

n.
  1. The act of retaining, or the state of being ratined.
  2. The power of retaining; retentiveness.
    No woman's heart So big, to hold so much; they lack retention.
  3. That which contains something, as a tablet; a of preserving impressions. [R.]
  4. The act of withholding; retraint; reserve.
  5. Place of custody or confinement.
  6. The right of withholding a debt, or of retaining property until a debt due to the person claiming the right be duly paid; a lien. (Law)

Phrases & Compounds
Retention cyst
a cyst produced by obstruction of a duct leading from a secreting organ and the consequent retention of the natural secretions.