radical as a noun: - 1
- 2
- 3
- 4
- 5
- 6
as an adjective: - 1
- 2
- 3
- 4
- 5
radical
noun
1 radical
chemistry Two or more atoms bound together as a single unit and forming part of a molecule.
synonyms: chemical group, group.
Roget 658:
improvement;
amelioration,
melioration;
betterment;
mend,
amendment,
emendation;
mending
etc.
v.;
advancement;
advance
etc.
(progress)
282;
ascent
etc.
305;
promotion,
preferment;
elevation
etc.
307;
increase
etc.
35;
cultivation,
civilization;
culture,
march of intellect;
menticulture†;
race-culture,
eugenics.
reform,
reformation;
revision,
radical reform;
second thoughts,
correction,
limoe labor [Lat.],
refinement,
elaboration;
purification
etc.
652;
oxidation;
repair
etc.
(restoration)
660;
recovery
etc.
660.
revise,
new edition.
reformer,
radical.
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Polish: grupa, grupa funkcyjna, podstawnik
2 radical
An atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule:
— In the body free radicals are high-energy particles that ricochet wildly and damage cells.
synonym: free radical.
Dutch: radicaal
Polish: rodnik, wolny rodnik
3 radical
A person who has radical ideas or opinions.
Polish: radykalista, radykał, ultras, ekstremista
4 radical
mathematics A quantity expressed as the root of another quantity.
5 radical
A character conveying the lexical meaning of a logogram.
6 radical
linguistics The form of a word after all affixes are removed.
synonyms: base, root, root word, stem, theme.
Dutch: stam
Polish: morfem leksykalny, pierwiastek, rdzeń, pień
adjective
1 radical
used of opinions and actions Far beyond the norm:
— Radical opinions on education.
synonyms: extremist, ultra.
Roget 153:
caused
etc.
v.;
causal,
original;
primary,
primitive,
primordial;
aboriginal;
protogenal†;
radical;
embryonic,
embryotic†;
in embryo,
in ovo [Lat.];
seminal,
germinal;
at the bottom of;
connate,
having a common origin.
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Roget 642:
important;
of importance
etc.
n.;
momentous,
material;
to the point;
not to be overlooked,
not to be despised,
not to be sneezed at;
egregious;
weighty
etc.
(influential)
175;
of note
etc.
(repute)
873;
notable,
prominent,
salient,
signal;
memorable,
remarkable;
unforgettable;
worthy of remark,
worthy of notice;
never to be forgotten;
stirring,
eventful.
grave,
serious,
earnest,
noble,
grand,
solemn,
impressive,
commanding,
imposing.
urgent,
pressing,
critical,
instant.
paramount,
essential,
vital,
all-absorbing,
radical,
cardinal,
chief,
main,
prime,
primary,
principal,
leading,
capital,
foremost,
overruling;
of vital importance
&c..
in the front rank,
first-rate;
superior
etc.
33;
considerable
etc.
(great)
31;
marked
etc.
v.;
rare
etc.
137.
significant,
telling,
trenchant,
emphatic,
pregnant;
tanti [Lat.].
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Roget 52:
complete,
entire;
whole
etc.
50;
perfect
etc.
650;
full,
good,
absolute,
thorough,
plenary;
solid,
undivided;
with all its parts;
all-sided.
exhaustive,
radical,
sweeping,
thorough-going;
dead.
regular,
consummate,
unmitigated,
sheer,
unqualified,
unconditional,
free;
abundant
etc.
(sufficient)
639.
brimming;
brimful,
topful,
topfull;
chock full,
choke full;
as full as an egg is of meat,
as full as a vetch;
saturated,
crammed;
replete
etc.
(redundant)
641;
fraught,
laden;
full-laden,
full-fraught,
full-charged;
heavy laden.
completing
etc.
v.;
supplemental,
supplementary;
ascititious†.
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Roget 5:
derived from within,
subjective;
intrinsic,
intrinsical†;
fundamental,
normal;
implanted,
inherent,
essential,
natural;
innate,
inborn,
inbred,
ingrained,
inwrought;
coeval with birth,
genetous†,
haematobious†,
syngenic†;
radical,
incarnate,
thoroughbred,
hereditary,
inherited,
immanent;
congenital,
congenite†;
connate,
running in the blood;
ingenerate†,
ingenite†;
indigenous;
in the grain
etc.
n.;
bred in the bone,
instinctive;
inward,
internal
etc.
221;
to the manner born;
virtual.
characteristic
etc.
(special)
79,
(indicative)
550;
invariable,
incurable,
incorrigible,
ineradicable,
fixed.
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Roget 84:
numeral,
complementary,
divisible,
aliquot,
reciprocal,
prime,
relatively prime,
fractional,
decimal,
figurate†,
incommensurable.
proportional,
exponential,
logarithmic,
logometric†,
differential,
fluxional†,
integral,
totitive†.
positive,
negative;
rational,
irrational;
surd,
radical,
real;
complex,
imaginary;
finite;
infinite;
impossible.
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Polish: skrajny, krańcowy
2 radical
Markedly new or introducing radical change:
— Radical political views.
synonym: revolutionary.
Polish: rewolucyjny
3 radical
Arising from or going to the root or source.
4 radical
Of or relating to or constituting a linguistic root.
Polish: rdzenny
5 radical
Especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem:
— Radical leaves.
synonym: basal.
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