adduct /ˈæ.dʌkt/noun 1/əˈdʌkt/ verb 1forms 3 noun1 •The product of an addition reaction. adduct /əˈdʌkt/ verb1 •To draw towards a center or a middle line.The therapist explained how certain muscles adduct the leg toward the body.The patient was unable to adduct his thumb after the injury. formsadducted · adducting · adducts