racquetball
— Noun
– English
～ the ball used in playing the game of racquetball
rad
— Noun
– English
～ a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
rad
— Noun
– English
～ the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
radar dome
— Noun
– English
～ a housing for a radar antenna; transparent to radio waves
radar fire
— Noun
– English
～ gunfire aimed a target that is being tracked by radar
radar
— Noun
– English
～ measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
radar beacon
— Noun
– English
～ a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their position
radar echo
— Noun
– English
～ an electronic signal that has been reflected back to the radar antenna; contains information about the location and distance of the reflecting object
Radclyffe Hall
— Noun
– English
～ English writer whose novel about a lesbian relationship was banned in Britain for many years (1883-1943)
raddle
— Noun
– English
～ a red iron ore used in dyeing and marking
Radhakrishnan
— Noun
– English
～ Indian philosopher and statesman who introduced Indian philosophy to the West (1888-1975)
radial pulse
— Noun
– English
～ pulse of the radial artery (felt in the wrist)
radial engine
— Noun
– English
～ an internal-combustion engine having cylinders arranged radially around a central crankcase
radial nerve
— Noun
– English
～ largest branch of the brachial plexus; extends down the humerus to the lateral epicondyle where it divides into one branch that goes to the skin on the back of the hand and another that goes to the underlying extensor muscles
radial
— Noun
– English
～ pneumatic tire that has radial-ply casing
radial artery
— Noun
– English
～ branch of the brachial artery beginning below the elbow and extending down the forearm around the wrist and into the palm
radial keratotomy
— Noun
– English
～ radial pattern of incisions in the cornea that cause the cornea to bulge; performed to correct myopia
radial asymmetry
— Noun
– English
～ the absence of symmetry about an axis
radian
— Noun
– English
～ the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
radiance
— Noun
– English
～ the quality of being bright and sending out rays of light