A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of very high frequency radio waves reflected from their surfaces, countable An installation of such a system or of the transmitting and receiving apparatus, measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects, verb_ To scan with radar, or as if with radar

Emission or propagation of energy in the form of waves or particles, A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay, The divergence or shooting forth of rays from a point or focus

Arising from or going to a root or source; basic, Medicine Relating to or being surgery that is extreme or drastic in an effort to eradicate all existing or potential disease, Proceeding from a rootlike stem, or one which does not rise above the ground, noun_ Specifically, a group of two or more atoms, not completely saturated, which are so linked that their union implies certain properties, and are conveniently regarded as playing the part of a single atom; a residue; -- called also a compound radical. Cf. Residue, A primitive letter; a letter that belongs to the radix, A person who holds or acts according to radical principles; one who pursues a theory to its furthest apparent limit; an extremist, especially in politics

Electromagnetic radiation with lower frequencies and longer wavelengths than those of microwaves, having frequencies lower than 300 megahertz and wavelengths longer than 1 meter, A device, such as a walkie-talkie, that transmits or receives such signals, An electronic device for listening to radio programming, consisting of a tuner and speakers, intransitive verb_ To transmit by radio, To transmit messages or a message by radio,

Plural form of radio, verb_ Third-person singular simple present indicative form of radio

A line segment that joins the center of a circle with any point on its circumference, A bounded range of effective activity or influence, A long, prismatic, slightly curved bone in humans, the shorter and thicker of the two forearm bones, located on the lateral side of the ulna

Furious intensity, as of a storm or disease, Madness; insanity; an access of maniacal violence, Especially, anger accompanied with raving; overmastering wrath; violent anger; fury, verb_ be violent; as of fires and storms, behave violently, as if in state of a great anger, transitive verb_ obsolete To enrage, intransitive verb_ To ravage; to prevail without restraint, or with destruction or fatal effect, To be violent and tumultuous; to be violently driven or agitated; to act or move furiously, To be furious with anger; to be exasperated to fury; to be violently agitated with passion

An entrance into another's territory for the purpose of seizing goods or valuables, A predatory operation mounted against a competitor, especially an attempt to lure away the personnel or membership of a competing organization, Hence A sudden onset in general; an irruption for or as if for assault or seizure; a descent made in an unexpected or undesired manner_ as, a police raid upon a gambling-house, verb_ enter someone else's territory and take spoils, take over (a company) by buying a controlling interest of its stock, search for something needed or desired, transitive verb_ To make a raid upon or into, intransitive verb_ To conduct a raid or participate in one, To make a raid on

The stout, narrow plank that forms the top of the bulwarks, The light, fencelike structures of wood or metal at the break of the deck, and elsewhere where such protection is needed, A railroad as a means of transportation, intransitive verb_ To use insolent and reproachful language; to utter reproaches; to scoff; -- followed by at or against, formerly by on, obsolete To flow forth; to roll out; to course, transitive verb_ rare To move or influence by railing, To inclose with rails or a railing

A road composed of parallel steel rails supported by ties and providing a track for locomotive-drawn trains or other wheeled vehicles, In the United states before the abolition of slavery, a secret arrangement for enabling slaves to escape Info tree territory, by passing them along from one point of concealment to another till they reached Canada or some other place of safety, a brake used in stopping railway cars or locomotives, verb_ compel by coercion, threats, or crude means, transport by railroad, supply with railroad lines, transitive verb_ Colloq., U. S. To carry or send by railroad; usually fig., to send or put through at high speed or in great haste; to hurry or rush unduly, To transport via railroad, To manipulate and hasten a procedure, as of formal approval of a law or resolution, intransitive verb_ To convict (an accused person) without a fair trial or on trumped-up charges, To supply (an area) with railroads