mas·ter·mind 
(măstər-mīnd′)
(măstər-mīnd′)n.
A highly intelligent person, especially one who plans and directs a complex or difficult project: the mastermind of a robbery.
tr.v. mas·ter·mind·ed, mas·ter·mind·ing, mas·ter·minds
To direct, plan, or supervise (a project or activity).
- hydrochloric acid
- hydrochloride
- hydrochlorofluorocarbon
- hydrochlorothiazide
- hydrochore
- hydrochory
- hydrocodone
- hydrocolloid
- hydrocolloidal
- hydrocortisone
- hydrocrack
- hydrocracker
- hydrocracking
- hydrocyanic acid
- hydrodynamic
- hydrodynamical
- hydrodynamically
- hydrodynamicist
- hydrodynamics
- hydroelectric
- hydroelectrically
- hydroelectricity
- hydrofluoric acid
- hydrofluorocarbon
- hydrofoil