| RADARS | • radars n. Plural of radar. • radars v. Third-person singular simple present indicative form of radar.
 • RADARs n. Plural of RADAR.
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| RADDED | • RAD v. to fear. | 
| RADDER | • radder adj. Comparative form of rad: more rad. • Radder prop.n. (Oxford University slang, archaic) The Radcliffe Camera.
 • RAD adj. afraid.
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| RADDLE | • raddle n. A red ochre. • raddle v. To mark with raddle; to daub something red.
 • raddle v. To interweave or twist together.
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| RADGER | • RADGE adj. (Scots) angry, obstreperous; lustful. | 
| RADGES | • radges n. Plural of radge. • radges v. Third-person singular simple present indicative form of radge.
 • RADGE n. a bad temper, a rage.
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| RADIAL | • radial adj. Arranged like rays that radiate from, or converge to a common centre. • radial adj. Moving along a radius.
 • radial adj. (Anatomy) Of, or relating to the radius bone.
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| RADIAN | • radian n. (Geometry) In the International System of Units, the derived unit of plane angular measure of angle… • RADIAN n. a unit of angular measure.
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| RADIOS | • radios n. Plural of radio. • radios v. Third-person singular simple present indicative form of radio.
 • RADIO n. signalling through space, without connecting wires, by means of electromagnetic waves.
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| RADISH | • radish n. A plant of the Brassicaceae family, Raphanus sativus or Raphanus raphanistrum subsp. sativus, having an edible root. • radish n. The root of this plant used as food. Some varieties are pungent and usually eaten raw in salads, etc…
 • radish n. With a distinguishing word: some other plant of the Raphanus genus or Brassicaceae family.
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| RADIUM | • radium n. The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive… • radium n. (Textiles, dated) A type of cloth woven from silk or synthetic yarn, often with a shiny appearance.
 • radium v. (Transitive, intransitive, obsolete) To treat (A tumour, etc.) with radium.
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| RADIUS | • radius n. (Anatomy) The long bone in the forearm, on the side of the thumb. • radius n. (Zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal.
 • radius n. (Entomology) One of the major veins of the insect wing, between the subcosta and the media; the vein…
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| RADOME | • radome n. A radar dome. • RADOME n. a domelike device used to shelter a radar antenna.
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| RADONS | • RADON n. a radioactive element, an inert gas. | 
| RADULA | • radula n. (Zoology) The rasping tongue of snails and all other mollusks except bivalves. • Radula prop.n. A taxonomic genus within the family Radulaceae – a group of leafy liverworts.
 • RADULA n. (Latin) a tonguelike organ of molluscs.
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