the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
radiolysis
Noun
molecular disintegration resulting from radiation
rain-wash
Noun
the washing away of soil or other loose material by rain
random walk
Noun
a stochastic process consisting of a sequence of changes each of whose characteristics (as magnitude or direction) is determined by chance
reaction formation
Noun
in psychiatry, a defense mechanism in which a person unconsciously develops attitudes and behavior that are the opposite of unacceptable repressed desires and impulses and serve to conceal them
real-time processing
Noun
data processing fast enough to keep up with an outside process
real-time operation
Noun
data processing fast enough to keep up with an outside process
redeposition
Noun
deposition from one deposit to another
reducing
Noun
loss of excess weight (as by dieting)
reducing
Noun
any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen)
refilling
Noun
filling again by supplying what has been used up
replenishment
Noun
filling again by supplying what has been used up
relative majority
Noun
(in an election with more than 2 options) the number of votes for the candidate or party receiving the greatest number (but less that half of the votes)
refining
Noun
the process of removing impurities (as from oil or metals or sugar etc.)
reflation
Noun
inflation of currency after a period of deflation
relaxation behavior
Noun
(physics) the exponential return of a system to equilibrium after a disturbance
resorption
Noun
the organic process in which the substance of some differentiated structure that has been produced by the body undergoes lysis and assimilation
radian
Noun
the unit of plane angle adopted under the Systeme International d'Unites
rad
Noun
the unit of plane angle adopted under the Systeme International d'Unites
rad
Noun
a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
radix
Noun
(numeration system) the positive integer that is equivalent to one in the next higher counting place
rydberg
Noun
a wave number characteristic of the wave spectrum of each element
rydberg constant
Noun
a wave number characteristic of the wave spectrum of each element
rydberg unit
Noun
a wave number characteristic of the wave spectrum of each element
roentgen
Noun
a unit of radiation exposure
radioactivity unit
Noun
a measure of radioactivity
rutherford
Noun
a unit strength of a radioactive source equal to one million disintegrations per second
resistance unit
Noun
the reciprocal of conductance
REM
Noun
a recurring sleep state during which dreaming occurs
reciprocal ohm
Noun
a unit of conductance equal to the reciprocal of an ohm