| rotary-wing aircraft |
an aircraft such as a helicopter that is supported by an airfoil that rotates around a vertical axis. |
| rotate |
to cause to revolve around an axis. [5 definitions] |
| rotation |
the act of turning on or around an axis. [4 definitions] |
| rotation of crops |
a system planting different crops in a fixed, repeated order in the same field so that each successive crop restores soil nutrients that were absorbed by the previous one. |
| rotative |
of or characterized by rotation; rotating. [2 definitions] |
| rotator |
one that rotates. [2 definitions] |
| rotator cuff |
a group of muscles that cover the shoulder joint and control shoulder rotation. |
| rotatory |
of, pertaining to, producing, or characterized by rotation; rotary; rotating. [2 definitions] |
| ROTC |
abbreviation of "Reserve Officers' Training Corps." |
| rote |
unthinking or mechanical routine or habit. [3 definitions] |
| rotenone |
a white, odorless, poisonous, crystalline compound obtained from the roots of derris and cube plants and used in insecticides and treatments for chiggers and scabies. |
| rotifer |
any of a group of mostly freshwater, microscopic, multicellular organisms that have one or more wheel-like rings of cilia at the front end which appear to rotate when vibrated. |
| rotisserie |
a broiler with a rotating spit, usu. driven by an electric motor. [2 definitions] |
| rotl |
in Mediterranean and esp. Muslim countries, a unit of weight, varying from about one to five pounds. |
| roto |
rotogravure. |
| rotogravure |
a printing process in which images or letters etched on a copper cylinder are transferred to paper or a similar surface in a rotary press. [2 definitions] |
| rotor |
the rotating part of a machine, usu. within a stationary part or housing. [2 definitions] |
| Rototiller |
trademark for a small motor-driven cultivator having rotary blades, used esp. in home vegetable gardens. [2 definitions] |
| rotten |
in the process of rotting or the state of being rotted; decaying or decayed. [5 definitions] |
| rotten borough |
any district having more representatives in government than its population warrants. |
| Rottweiler |
(sometimes l.c.) any of a breed of strong German dog having short black hair and tan markings. |