معنی فارسی rd

A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.

In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad

Anything which radiates or emits rays.

A device that lowers engine coolant temperature by conducting heat to the air, through metal fins.

(of buildings) A finned metal fixture that carries hot water or steam in order to heat a room.

A type of antenna.

A way used for travelling between places, originally one wide enough to allow foot passengers and horses to travel, now (US) usually one surfaced with asphalt or concrete and designed to accommodate many vehicles travelling in both directions. In the UK both senses are heard: a country road is the same as a country lane.

A road; or particularly a car, as a means of transportation.

A path chosen in life or career.

An underground tunnel in a mine.

A railway or a single railway track.

The act of riding on horseback.

A hostile ride against a particular area; a raid.

(often in the plural) A partly sheltered area of water near a shore in which vessels may ride at anchor; a roadstead.

A journey, or stage of a journey.

A way or route.

A circular or spherical object or part of an object.

A circular or repetitious route.

A general outburst from a group of people at an event.

A song that is sung by groups of people with each subset of people starting at a different time.

A serving of something; a portion of something to each person in a group.

A single individual portion or dose of medicine.

One sandwich (two full slices of bread with filling).

A long-bristled, circular-headed paintbrush used in oil and acrylic painting.

A firearm cartridge, bullet, or any individual ammunition projectile. Originally referring to the spherical projectile ball of a smoothbore firearm. Compare round shot and solid shot.

One of the specified pre-determined segments of the total time of a sport event, such as a boxing or wrestling match, during which contestants compete before being signaled to stop.

A stage, level, set of events in a game

(drafting, CAD) A rounded relief or cut at an edge, especially an outside edge, added for a finished appearance and to soften sharp edges.

A strip of material with a circular face that covers an edge, gap, or crevice for decorative, sanitary, or security purposes.

(butchery) The hindquarters of a bovine.

A rung, as of a ladder.

A crosspiece that joins and braces the legs of a chair.

A series of changes or events ending where it began; a series of like events recurring in continuance; a cycle; a periodical revolution.

A course of action or conduct performed by a number of persons in turn, or one after another, as if seated in a circle.

A series of duties or tasks which must be performed in turn, and then repeated.

A circular dance.

Rotation, as in office; succession.

A general discharge of firearms by a body of troops in which each soldier fires once.

An assembly; a group; a circle.

A brewer's vessel in which the fermentation is concluded, the yeast escaping through the bunghole.

A vessel filled, as for drinking.

A round-top.

A round of beef.

A whisper; whispering.

Discourse; song.

The distance between the front and rear sights of a firearm.

پاسخ به مسئله را می‌توان در بخش RD پیدا کرد.

RD به معنای تحقیق و توسعه است.