Rotary may refer to:

General

Rotary motion Rotation around a fixed axis is a special case of rotational motion. The fixed-axis hypothesis excludes the possibility of an axis changing its orientation and cannot describe such phenomena as wobbling or precession. According to Euler's rota ...

Engineering and technology

Rotary dial A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling technology in telecommunications known as pulse dialing. It is used when initiating a telephone call to transmit the destination telephone number ...

, a rotating telephone dial * Rotary engine (disambiguation), multiple types of engines called "rotary" * Rotary latch * Rotary milking shed, a type of milking shed used in the

dairy A dairy is a business enterprise established for the harvesting or processing (or both) of animal milk – mostly from cows or buffaloes, but also from goats, sheep, horses, or camels – for human consumption. A dairy is typically located on ...

industry * Rotary snowplow, one type of railroad snowplow used especially for deep snow removal * Rotary system, a type of pre-electronic telephone switch * Rotary table (drilling rig), a device used to apply directional force to a drill string *

Rotary tiller A cultivator is a piece of agricultural equipment used for secondary tillage. One sense of the name refers to frames with ''teeth'' (also called ''shanks'') that pierce the soil as they are dragged through it linearly. It also refers to mac ...

, a motorised cultivator * Rotary woofer, a type of loudspeaker capable of producing very low frequency sound * Rotary wing aircraft

Arts and entertainment

* "The Rotary", a song by Andy Partridge from '' Take Away / The Lure of Salvage''

Organisations and enterprises

Rotary International Rotary International is one of the largest service organizations in the world. Its stated mission is to "provide service to others, promote integrity, and advance world understanding, goodwill, and peace through hefellowship of business, prof ...

, or Rotary Club, an international service organization founded in the United States **

Rotary Foundation The Rotary Foundation is a non-profit corporation that supports the efforts of Rotary International to achieve world understanding and peace through international humanitarian, educational, and cultural exchange programs. It is supported solely b ...

, non-profit foundation of Rotary International **

Rotary Scholarships Rotary International offers a number of scholarships worldwide for periods of 3 months, 6 months, 1 year and 2 years. Ambassadorial Mission The purpose of the Ambassadorial Scholarship was to further international understanding and friendly rel ...

, scholarships offered by the organization *

Rotary Watches Rotary Watches Ltd was established at La Chaux-de-Fonds, Switzerland by Moise Dreyfuss in 1895. By the 1920s family members Georges and Sylvain Dreyfuss began exporting Rotary watches to Britain, which was to become the company's most successful ...

, a Swiss watchmaker

Roads

Roundabout A roundabout is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.''The New Shorter Oxford En ...

, or "rotary", a circular roadway intersection {{disambiguation