Fixation

втвърдяване

vtvǎrdjavane

(the act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition)

закрепване

zakrepvane

(the act of fixing)

сгъстяване

sgǎstjavane

(the act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition)