de ‧ duce AC /dɪˈdjuːs $ dɪˈduːs/ BrE AmE verb [transitive] formal
[ Word Family: adjective : ↑ deducible , ↑ deductive ; verb : ↑ deduce ; noun : ↑ deduction ]
[ Date: 1400-1500 ; Language: Latin ; Origin: deducere 'to lead out' , from ducere 'to lead' ]
to use the knowledge and information you have in order to understand something or form an opinion about it
deduce that
From her son’s age, I deduced that her husband must be at least 60.
deduce from
What did Darwin deduce from the presence of these species?
—deducible adjective