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R22
R22 is one of the CFCs prohibited from use in new systems. ...
Rabbit fever
Rabbit fever, or tularaemia, is a disease caused by ticks, ...
Rabies
Rabies is a viral zoonosis found in domestic and wild ...
Rachis
The rachis is the central axis of a feather which supports ...
RADARSAT-1
RADARSAT-1 is a sophisticated Earth observation satellite ...
Radial velocity
Radial velocity is the velocity of an object in the ...
Radian
The radian is a unit (symbol rad) for measuring plane ...
Radiant
The radiant is the spot on the celestial sphere from which ...
Radiating texture
A radiating texture describes an aggregate of elongated ...
Radiation pressure
Radiation pressure is the pressure exerted by light.
Radiation-oncologist
A radiation-oncologist is an oncology doctor specialising in ...
Radiative forcing
According to the definition provided by the IPCC ...
Radical
A radical is a molecular species with one or more unpaired ...
Radio data network
A radio data network is a digital radio network offering ...
Radio telescope
A radio telescope is an astronomical instrument for ...
Radioactivity
Radioactivity is the property of certain atomic nuclei of ...
Radiography
Radiography is an imaging technique designed to visualise an ...
Radiometer
A radiometer is a passive receiver that collects emitted ...
Radiosensitive
The term radiosensitive describes a cell which is sensitive ...
Radiotherapy
Radiotherapy is the treatment of a malignant disease ...
Radish
Radish seasons The pink radish is a summer vegetable which ...
Radius
The radius is part of the skeleton of the forearm. Location ...
Radon
Radon is a radioactive gas produced in a natural nuclear ...
RADSL
RADSL, Rate Adaptive DSL, is technology that supports both ...
Rafter
Rafters are 45 x 50 to 80 x 110 section pieces of wood, ...
Raid
RAID, Redundant Array of Independent Disks: a technical ...
Rainforest
Like the mangrove, a rainforest or tropical rainforest ...
Ralph
Ralph is an instrument on board the New Horizons probe, it ...
RAM
Random Access Memory. Unlike read only memory (ROM), random ...
Raman effect
The Raman effect is a quantum effect observed when light ...
Raman spectroscopy
Raman spectroscopy is mainly used in chemistry and ...
Ramjet engine
The ramjet is the simplest type of jet engine and has no ...
Ramsar Convention
The Convention on Wetlands of International Importance ...
Random number
Random numbers are an important feature of encryption ...
Randomised study
A randomised study is a study on a new treatment in which ...
Range
A species' range is the geographic area in which this ...
Rare earth minerals
A set of 15 rare elements (such as lanthanum, neodymium, ...
Raspberry
Raspberry season The raspberry is a summer fruit eaten from ...
Rate determining step
The rate determining step is the slowest step in a chemical ...
Rate monitoring
Rate monitoring is used to regulate the data transfer rate ...
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