tinción
staining
tint
to color slightly
+
-ción
action or effect
Tinción means staining and can be thought of as tint0 (to color slightly0) + -ción1 (action or effect1), literally meaning 'the action or effect of tinting'.
noun
- stainingThe act or process of staining or dyeing.La tinción de las células es crucial para el examen microscópico. // The staining of cells is crucial for microscopic examination.