| radiance |
the quality of being radiant, shining, bright or splendid |
| radians |
Plural of radian. The angle subtended at the centre of a circle by an arc of the circle of the same length as the circle's radius. |
| radiant |
light and/or heat. |
| radiantly |
In a manner that is radiant. Glowingly. |
| Radiata |
a taxonomic superphylum, within subkingdom Eumetazoa - radially symmetric animals |
| radiate |
to emit rays or waves |
| radiating |
|
| radiation |
The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat. |
| radiation biology |
, the study of the effect of ionizing and nonionizing radiation on biological systems |
| radiation chemistry |
, the study of the chemical changes that result from the absorption of ionizing radiation |
| radiation damage |
, harmful changes in the properties of materials caused by interactions with ionizing radiation |
| radiation hardening |
, the protection of semiconductor devices from the effects of ionizing radiation |
| radiation poisoning |
radiation sickness |
| radiation pressure |
the pressure exerted by electromagnetic radiation on an object on which it impinges, as a consequence of its momentum |
| radiation pyrometer |
a device that measures the intensity of radiation from, and thus the temperature of, a hot body |
| radiation shielding |
physical barriers designed to provide protection from the effects of ionizing radiation |
| radiation sickness |
Any illness produced by ionizing radiation with symptoms range from nausea through to death. |
| radiation therapy |
the use of ionizing radiation to treat disease, especially cancer |
| radiative |
of, relating to, or occuring through radiation |
| radiative balance |
The relationship between the amount of energy reaching the Earth (or a portion of it) and the amount leaving it. |
| radiative recombination |
the capture of a free electron by an atom and the subsequent emission of a photon having the same energy |
| radiator |
Any thing which radiates or emits rays. |
| radical |
Of or pertaining to the root or root cause of the matter. |
| radical anion |
a negatively charged radical ion |
| radical axis |
a radical line |
| radical cation |
a positively charged radical ion |
| radical center |
a point, at which the radical lines of three circles meet |
| radical ion |
any radical that also carries an electric charge; typically, the charge and unpaired electron are associated with the same atom |
| radical line |
any line perpendicular to the line that joins the centres of two nonconcentric circles |
| radicalisation |
|
| radicalism |
Any of various radical social or political movements that aim at fundamental change in the structure of society |
| radicalization |
the process of radicalizing |
| radicalize |
to make radical |
| radicalizing |
|
| radically |
In a radical manner. |
| radicand |
The number or expression underneath the radical sign; e.g. The 3 in \sqrt[n]{3} |
| radicchio |
a form of chicory with red leaves and a slightly bitter taste, eaten as a salad vegetable |
| radicofunctional name |
The name of an organic compound that uses two words, the first specifying the radical and the second the functional group e.g. "alkyl halide" or "benzoyl peroxide" |
| radiferous |
containing radium |
| radii |
|
| radio |
The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves. |
| radio- |
Used to form words relating to radiation, radioactivity or radio |
| radio astronomy |
The branch of astronomy which utilizes radio waves through the use of radio telescopes to study celestial bodies and occurances. |
| radio beacon |
A beacon that emits radiowave signal to guide ships and/or aircraft. |
| radio beacons |
|
| radio fix |
The location of a radio transmitter by taking bearings from two receivers. |
| radio frequencies |
|
| radio frequency |
That part of the electromagnetic spectrum, between about 3 kHz and 300 HHz, within which radio waves are transmitted. |
| radio knife |
a surgical instrument that uses a high-frequency electric arc to cut through or cut away tissue and at the same time sterilize the edges of the wound and seal cut blood vessels |
| radio silence |
a status maintained where all fixed or mobile radio stations in an area stop transmitting (sometimes limited to certain frequency bands) |
