A radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health.
synonyms: atomic number 86, Rn.
Roget 384:
increase of temperature;
heating
etc.
v.;
calefaction†,
tepefaction†,
torrefaction†;
melting,
fusion;
liquefaction
etc.
335;
burning
etc.
v.;
ambustion†,
combustion;
incension†,
accension†;
concremation†,
cremation;
scorification†;
cautery,
cauterization;
ustulation†,
calcination;
cracking,
refining;
incineration,
cineration†;
carbonization;
cupellation [Chem].
ignition,
inflammation,
adustion†,
flagration†;
deflagration,
conflagration;
empyrosis†,
incendiarism;
arson;
auto dafe [Fr.].
boiling
etc.
v.;
coction†,
ebullition,
estuation†,
elixation†,
decoction;
ebullioscope†;
geyser;
distillation
(vaporization)
336.
furnace
etc.
386;
blanket,
flannel,
fur;
wadding
etc.
(lining)
224;
clothing
etc.
225.
still;
refinery;
fractionating column,
fractionating tower,
cracking tower.
match
etc.
(fuel)
388;
incendiary;
petroleuse [Fr.];
[biological effects resembling the effects of heat]
[substances causing a burning sensation and damage on skin or tissue]
cauterizer†;
caustic,
lunar caustic,
alkali,
apozem†,
moxa†;
acid,
aqua fortis [Lat.],
aqua regia;
catheretic†,
nitric acid,
nitrochloro-hydric acid,
nitromuriatic acid;
radioactivity,
gamma rays,
alpha particles,
beta rays,
X-rays,
radiation,
cosmic radiation,
background radiation,
radioactive isotopes,
tritium,
uranium,
plutonium,
radon,
radium.
sunstroke,
coup de soleil [Fr.];
insolation.
[artifacts requiring heat in their manufacture]
pottery,
ceramics,
crockery,
porcelain,
china;
earthenware,
stoneware;
pot,
mug,
terra cotta [Sp.],
brick,
clinker.
[products of combustion]
cinder,
ash,
scoriae,
embers,
soot;
slag.
[products of heating organic materials]
coke,
carbon,
charcoal;
wood alcohol,
turpentine,
tea tree oil;
gasoline,
kerosene,
naptha,
fuel oil
(fuel)
388;
wax,
paraffin;
residue,
tar.
inflammability,
combustibility.
[Transmission of heat]
diathermancy†,
transcalency†,
conduction;
convection;
radiation,
radiant heat;
heat conductivity,
conductivity.
[effects of heat 2]
thermal expansion;
coefficient of expansion.
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Dutch: radon
Polish: radon, Rn