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Radian
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
📖 Definitions of "Radian"
- 1
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
🔄 Synonyms of "Radian"
1 synonyms found via WordNet and Google Books.
| Word | Definition |
|---|---|
| radnoun | (metrology) A non-SI unit of absorbed dose of radiation, equal to 0.01 gray, that is, 1 centigray. |
💡 Words with a Similar Meaning to "Radian"
Found via reverse dictionary — words that share a conceptual meaning.
| Word | Definition |
|---|---|
| radnoun | (metrology) A non-SI unit of absorbed dose of radiation, equal to 0.01 gray, that is, 1 centigray. |
| rad.noun | Abbreviation of radian. [(geometry) In the International System of Units, the derived unit of plane angle: the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle.] |
| radiusnoun | (geometry) A line segment between any point of a circle or sphere and its center. |
| rhumbnoun | (navigation) A line which crosses successive meridians at a constant angle. |
| radiculenoun | A radicle. |
| radius armnoun | (mechanical engineering) A radius rod. |
| irradiancynoun | Synonym of irradiance. |
| radiarynoun | (zoology, obsolete) A radiate; one of the Radiata. |
| radial tyrenoun | (British) Alternative spelling of radial tire. [A kind of vehicle tire incorporating reinforcing cords distributed radially relative to the hub (at 90 degrees to the direction of travel).] |
| radial bearingnoun | A ball bearing or roller bearing, or an aspect or component of one, that is shaped best as to bear radial forces, that is, the radial vectors of the loading forces. |
| ronnametrenoun | (metrology) An SI unit of length equal to 10²⁷ metres. Symbol: Rm |
| kiloradnoun | A unit of absorbed radiation dose, equivalent to 1000 rads. |
| rutherfordnoun | An obsolete unit of radioactivity (symbol: rd), defined as the activity of a quantity of radioactive material in which one million nuclei decay per second. |
| radarnoun | (uncountable) In full primary radar: a method of detecting a distant object and determining its position, velocity, or other characteristics by analysing radio waves (usually microwaves) which are sent towards the object and which reflect off its surfaces; also, the field of study of this method. |
| radiclenoun | (botany) The rudimentary shoot of a plant which supports the cotyledons in the seed, and from which the root is developed downward; the root of the embryo. |
| radgienoun | An angry or violent person. |
| rectanglenoun | (geometry) Any quadrilateral having opposing sides parallel and four right angles. |
| radial bonenoun | Synonym of radius (“a bone in the forearm”). |
| radioulnanoun | (anatomy) The radius and ulna considered as a unit |
| radialisnoun | (anatomy) A radial muscle, artery, or nerve. |
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