1. A thin film of liquid inflated with air or gas; as, a soap bubble; bubbles on the surface of a river. Beads of sweat have stood upon thy brow, Like bubbles in a late disturbed stream. Shak. 2. A small quantity of air or gas within a liquid body; as, bubbles rising in champagne or aërated waters. 3. A globule of air, or globular vacuum, in a transparent sol...