How to Say "secretion" in Spanish
The Spanish word for “secretion” is “flujo” — B1 level.
English → SpanishB1
nounB1
biological output

Examples
La doctora preguntó sobre la naturaleza del flujo.
The doctor asked about the nature of the discharge.
Ella toma nota de su flujo menstrual cada mes.
She notes her menstrual flow every month.
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