Word: radar Part of Speech: noun Etymology: Etymology tree Latin radiusder. English radio- Proto-Indo-European *kʷelh₁-der. Ancient Greek τῆλε (têle)lbor. French télé- Proto-Indo-European *gerbʰ- Proto-Hellenic *grə́pʰō Ancient Greek γράφω (gráphō) Ancient Greek -γράφος (-gráphos)bor. Latin -graphuslbor. French -graphe French télégraphebor. English telegraph Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ia Old French -ieder. Middle English -ie Middle English -y English -y English telegraphy English radiotelegraphyclip. English radio Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē- Proto-Indo-European *(s)teg-der. Proto-Italic *tegō Latin tegō Latin dētegō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tio Latin dētēctiōder. Latin dētēctiōnembor. English detection Proto-Indo-European *h₂ent- Proto-Indo-European *-s Proto-Indo-European *h₂énts Proto-Indo-European *-i Proto-Indo-European *h₂énti Proto-Germanic *andi Old English and Middle English and English and Proto-Indo-European *(H)rek-der. Proto-Celtic *reketi Gaulish *rekosbor.? Proto-Indo-European *h₃reǵ-der. Proto-Germanic *rinkanąder. Proto-Germanic *rankaz Frankish *rankbor.? Vulgar Latin *rencus Old French reng Proto-Italic *-āzi ▲ Latin -ereinflu. Latin -āre Old French -ier Old French rengierbor. Middle English rengen English range Proto-Germanic *-ungō Old English -ung Middle English -ynge English -ing English ranging English RADAR English radar The noun is derived from RADAR by anacronymic evolution. RADAR is an acronym of ra(dio) d(etection) a(nd) r(anging) which was coined by Lieutenant-Commander Samuel M. Tucker and Lieutenant-Commander F. R. Furth of the United States Navy in November 1940. The verb is probably derived from the noun. Pronunciation: /ˈɹeɪdɑː/, /ˈɹeɪˌdɑɹ/ 1. 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. Labels: uncountable Example: They were able to find the enemy fleet using radar. Example: Although operational environments profoundly differ, both kinds of autonomous vehicles, groundcraft and aircraft, will still rely on conceptually the same sorts of sensors — cameras, radar and lidar — to perceive surroundings in real time. 2. 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. Labels: broadly, uncountable 3. 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. Labels: countable Example: The Ministry of Defence funded the development of an entirely new radar and improved avionics. Example: Evidence as to the audio monitor's reading is required to prove the [police] officer used the radar unit properly, and must be shown in order to secure a conviction for speeding when using radar. 4. 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. Labels: countable Example: Each of these aircraft has been upgraded with a new radar and a more powerful engine. Example: [T]he [depth] bombs must be tied to a grid of listening devices, radars and plotting instruments. 5. Often preceded by a descriptive word: a natural (for example, in an animal such as a bat) or human-made detection method based on the analysis of reflected signals other than radio waves, as light waves or sound waves; (countable) an instance of this. Labels: broadly, uncountable 6. A superior ability to detect something; an awareness, an intuition. Labels: countable, figuratively Example: His sensitive radar for hidden alliances keeps him out of trouble. Example: Stanley: Geez, how'd ya know? / Happy: I got radar or something.