mas·ter·stroke 
(măstər-strōk′)
(măstər-strōk′)n.
An achievement or action revealing consummate skill or mastery: a masterstroke of diplomacy. See Synonyms at feat1.
- Artaxerxes I
- Artaxerxes II
- retrofittable
- retrofitter
- retroflection
- retroflex
- retroflexion
- retrogradation
- retrograde
- retrograde ejaculation
- retrogradely
- retrogress
- retrogression
- retrogressive
- retrogressively
- retrolental
- retronym
- retroocular
- retroperitoneal
- retropharyngeal
- retrorocket
- retrorse
- retrorsely
- retrospect
- retrospection