Dictionary
de•duce
Pronunciation: (di-dOOs', -dyOOs'), [key]—
v.t., -duced, -duc•ing.
1. to derive as a conclusion from something known or assumed; infer:
From the evidence the detective deduced that the gardener had done it.
2. to trace the derivation of; trace the course of:
to deduce one's lineage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.