How to Say "suction" in Spanish
The Spanish word for “suction” is “aspiración” — B2 level.
English → SpanishB2
nounB2
the act of drawing something in by vacuum

Examples
La aspiración de humo es perjudicial para la salud.
Inhaling smoke is harmful to your health.
El motor tiene un conducto para la aspiración de aire.
The engine has a duct for air intake.
El dentista usó un tubo de aspiración durante la limpieza.
The dentist used a suction tube during the cleaning.
Technical Usage
In technical contexts, you'll often see 'aspiración de' followed by the substance being pulled in (like air, water, or dust).
Don't confuse with the tool
Mistake: “Usa la aspiración para limpiar el suelo.”
Correction: Usa la aspiradora para limpiar el suelo. 'Aspiración' is the act, 'aspiradora' is the machine (vacuum cleaner).
Related Translations
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