<p><strong>Noun</strong></p><ul><li>a person or thing that stabilizes.</li><li>Aeronautics: a device for stabilizing an aircraft, as the fixed, horizontal tail surface on an airplane.</li><li>Nautical: a mechanical device for counteracting the roll of a vessel, consisting of a pair of retractable fins.</li><li>any of various substances added to foods, chemical compounds, etc., to prevent deterioration.</li><li>a comparatively large shock absorber for motor vehicles.</li><li>Military: any of various devices or systems that keep a gun mounted on a moving ship, tank, or plane automatically aimed at its target.</li></ul><p><strong>Verb</strong></p><ul><li>to balance or equip with a counterweight.</li></ul>