D defs.my
Entry 6 senses Webster, 1913

Retention

/rēt-ĕn'-shən/ · Re·ten·tion · IPA /ɹɪˈtɛnʃən/
01 n. The act of retaining, or the state of being ratined.
  1. 1.
    The act of retaining, or the state of being ratined.
  2. 2.
    The power of retaining; retentiveness.
    “No woman's heart So big, to hold so much; they lack retention.” Shak.
  3. 3.
    That which contains something, as a tablet; a ���� of preserving impressions.[R.]
  4. 4.
    The act of withholding; retraint; reserve.
  5. 5.
    Place of custody or confinement.
  6. 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.