: the act or process of removing secretions or fluids from hollow or tubular organs or cavities by means of a tube and a device (as a suction pump) that operates on negative pressure

Suction is the day-to-day term for the movement of gases or liquids along a pressure gradient with the implication that the movement occurs because the lower pressure pulls the gas or liquid.

They suction the baby's mouth -- try to pump air into her lungs, holding a bag mask over her mouth.

SUCTION definition: the act, process, or condition of sucking. sucking. See examples of suction used in a sentence.

1. To draw away or remove by the force of suction: suction fluid from the lungs. 2. To clean or evacuate (a body cavity, for example) by the force of suction.

Aug 16, 2025 · Many people intuitively think of suction as a pulling force, but this understanding is not entirely accurate. Instead, suction arises from a difference in pressure, where a higher external …

SUCTION meaning: 1 : the act or process of removing the air, water, etc., from a space in order to pull something into that space or in order to cause something to stick to a surface; 2 : the force with …