About: free radical

Premodifier: free
Head noun: radical

Same concepts
http://dbpedia.org/resource/Radical_(chemistry)

Broader concepts

label	provenance	confidence
substance	isap:320714513	0.869682
reactive species	isap:437681023	0.854598
species	isap:437681024	0.844112
environmental damage	isap:276062672	0.829799
damaging reactive oxygen species	isap:437681052	0.819344
oxygen species	isap:437681030	0.818644
environmental factor	isap:274497814	0.817230
reactive oxygen species	isap:437681019	0.798155
activate species	isap:437681033	0.787308
thing	isap:32879653	0.778220
reactive oxygen	isap:268490132	0.777600
reactive chemical species	isap:437681057	0.773256
free radical	isap:436773609	0.756897
oxygen-containing molecule	isap:50934972	0.756142
agent from the body	isap:31767192	0.747108
reactive intermediate	isap:512127452	0.745942
environmental aggressor	isap:317326100	0.745139
damaging chemical	isap:45472692	0.736736
harmful substance	isap:320714514	0.735962
oxidative product	isap:431179010	0.735869
chemical compound	isap:50038272	0.735202
toxic substance	isap:320714515	0.729649
reactive molecule	isap:50934966	0.729105
external stressor	isap:49420215	0.727444
harmful chemical	isap:45472693	0.726356
reactive compound	isap:50038270	0.725658
waste product	isap:431179008	0.725140
toxic agent	isap:31767191	0.722259
toxic compound	isap:50038271	0.717250
toxic chemical	isap:45472696	0.715021
active species	isap:437681027	0.698924
environmental pollutant	isap:319977270	0.697002
external factor	isap:274497817	0.695855
other species	isap:437681046	0.691597
benefit	isap:431810489	0.690579
toxic product	isap:431179011	0.685055
molecule	isap:50934962	0.683358
destructive element	isap:439031868	0.682666
compound	isap:50038269	0.663552
toxin	isap:32310523	0.645266
immune system	isap:274537827	0.637277
visible sign	isap:73011144	0.636694
paramagnetic species	isap:437681044	0.620603
topic	isap:32293428	0.612588
agent	isap:31767184	0.609368
number of factor	isap:269359149	0.606565
aging process	isap:431248688	0.605727
release of inflammatory mediator	isap:431778982	0.598923
ro	isap:55898854	0.595577
unpaired electron	isap:51906619	0.577130
oxidant	isap:428624742	0.573344
chemical	isap:45472689	0.571857
ingredient	isap:243971921	0.558678
mediator	isap:48085541	0.556204
invader	isap:432362307	0.550827
degenerative disease	isap:430245911	0.539352
intracellular structure	isap:317276184	0.539035
cause of skin damage	isap:39655500	0.517218
electromagnetic radiation	isap:317904821	0.511890
method	isap:275332909	0.509219
mutagen	isap:436203788	0.492943
art	isap:509574196	0.484626
factor	isap:274497813	0.479740
stress factor	isap:274497819	0.477589
byproduct of cellular metabolism	isap:317788422	0.463307
carcinogen	isap:242926401	0.462759
natural byproduct of metabolism	isap:317788431	0.453746
means	isap:37428588	0.449813
chemical species	isap:437681031	0.448112
unstable molecule	isap:50934963	0.445915
treatment	isap:320848804	0.444654
infection	isap:318527288	0.444561
radiation	isap:317904820	0.442136
cancer	isap:273662484	0.436808
major cause of aging	isap:39655505	0.435983
byproduct	isap:317788425	0.434912
mechanism	isap:320905499	0.427924
reactive chemical	isap:45472691	0.425681
structure	isap:317276181	0.424187
blood vessel	isap:273932680	0.417555
issue	isap:34472707	0.400961
specie	isap:272752269	0.394690
electron	isap:51906622	0.391435
byproduct of metabolism	isap:317788428	0.388614
byproduct of normal metabolism	isap:317788429	0.386955
ion	isap:509520556	0.366537
cause of premature aging	isap:39655504	0.362486
oxygen molecule	isap:50934964	0.348136
culprit in the aging	isap:428503260	0.345417
gas	isap:509515815	0.326794
result	isap:267245343	0.323586
oxygen	isap:268490131	0.320720
atom miss a electron	isap:71588843	0.319446
product	isap:431179007	0.316106
powerful antioxidant	isap:66312621	0.314883
brain	isap:33951953	0.314204
group of atom	isap:38963919	0.312421
problem	isap:431315162	0.309809
by-product	isap:242246533	0.306538
biggest contributor	isap:65411068	0.306073
brain cell	isap:72011934	0.304744
kind	isap:74041943	0.291131
disease	isap:430245909	0.288847
skin	isap:73262699	0.288768
vitamin c	isap:124719849	0.288158
furthermore	isap:64680657	0.286500
antioxidant	isap:66312620	0.285681
oxidative stress	isap:273297554	0.284444
eye	isap:509511628	0.282569
enzyme	isap:265997794	0.276544
nutrient	isap:45627558	0.275799
major cause	isap:39655503	0.272812
stress	isap:273297555	0.257558
damage	isap:276062671	0.253117
spectroscopy	isap:512157513	0.252030
fat	isap:509511085	0.245778
energy	isap:275287938	0.238906
activity	isap:50102176	0.223263
pollution	isap:319952374	0.222108
number	isap:269359148	0.218666
source	isap:271719475	0.211134
research	isap:50195229	0.200638
radioimmunoassay	isap:509370662	0.192006
heart	isap:40226590	0.173292
nature	isap:268492658	0.163782
body	isap:71977695	0.162583
formation	isap:319146309	0.160646
thousand	isap:49324477	0.155149
cell	isap:72011933	0.149073
heart disease	isap:430245910	0.147492
assay by the use	isap:35832878	0.143282
example	isap:431548117	0.138481
however	isap:433101447	0.135084
protein	isap:432761957	0.121755
vitamin	isap:437110111	0.111722
aging	isap:31757391	0.109563
e	isap:124719884	0.104658

Narrower concepts

label	provenance	confidence
singlet oxygen	isap:441080346	0.932095
hydroxyl radical	isap:436773578	0.913059
reactive oxygen species ros	isap:232773808	0.896120
hydrogen peroxide	isap:342879885	0.883055
nitric oxide	isap:230528293	0.860515
superoxide radical	isap:436773583	0.847552
superoxide anion	isap:228579112	0.834769
superoxide ion	isap:232235796	0.791444
hydroxyl	isap:344918951	0.788015
hydroxy radical	isap:436773596	0.778010
peroxyl radical	isap:436773676	0.776750
free radical	isap:436773609	0.756897
vitamin c	isap:299954484	0.747827
superoxide anion o2	isap:30895786	0.742654
reactive oxygen species	isap:430007451	0.730912
lactic acid	isap:12129834	0.720875
cigarette smoke	isap:230583596	0.719624
sun exposure	isap:340990915	0.715586
benzoyl peroxide	isap:342879895	0.710766
nitric oxide no	isap:30657169	0.706010
reactive nitrogen species rns	isap:233710302	0.703276
peroxynitrite	isap:477932473	0.701288
oxygen species	isap:430007453	0.691937
heavy metal	isap:230332588	0.683727
vitamin e	isap:299218729	0.675663
superoxide anion radical	isap:436773610	0.668440
superoxide	isap:219696831	0.664320
super oxide	isap:230528297	0.662108
oxygen radical	isap:436773620	0.661766
fine line	isap:3724534	0.657650
superoxide dismutase	isap:24005001	0.638450
cardiovascular disease	isap:434019361	0.611018
atomic oxygen	isap:441080350	0.610837
cell membrane	isap:340426862	0.605887
peroxide	isap:342879886	0.595422
molecular oxygen	isap:441080354	0.593099
heart disease	isap:434019360	0.572464
ascorbic acid	isap:12129833	0.568943
hydroxyl radical oh	isap:344918953	0.559352
lipid peroxide	isap:342879898	0.557034
atmospheric pollutant	isap:25760887	0.549818
pollution	isap:27946368	0.549443
hydrogen peroxide h2o2	isap:11702401	0.544328
no	isap:30657168	0.542183
hydroxyl radical oh	isap:30540057	0.515949
inflammation	isap:110533223	0.509369
oxygen molecule	isap:346420348	0.495818
chlorine	isap:346717787	0.465285
h2o2	isap:11702402	0.463772
hydroxyl free radical	isap:344918954	0.461061
nitrogen compound	isap:341633512	0.449053
carbonate	isap:25769831	0.448282
exposure	isap:340990913	0.430621
diabetes	isap:346378455	0.419252
dirt	isap:9926279	0.412699
smoke	isap:230583595	0.411072
peroxyl	isap:430699258	0.395244
glutathione	isap:138122907	0.393430
smoking	isap:434706119	0.392773
light	isap:224815823	0.392525
carbon	isap:442266861	0.389818
alcohol	isap:436941253	0.382591
other molecule	isap:346420349	0.379334
toxin	isap:229659056	0.365078
ozone	isap:225890950	0.360467
species	isap:430007455	0.356677
alpha lipoic acid	isap:231208651	0.353145
ho	isap:31093103	0.337090
singlet	isap:438044421	0.335284
radiation	isap:26124203	0.320754
molecule	isap:346420346	0.312276
stress	isap:448036654	0.307534
tocopherol	isap:218574920	0.307508
sun	isap:232813854	0.303007
ro	isap:29501326	0.298428
caffeine	isap:346491928	0.286851
oh	isap:30540056	0.280428
sunlight	isap:344156586	0.280216
cigarette	isap:26062617	0.279525
hydrogen	isap:344022090	0.274215
dna	isap:234469736	0.273833
arthritis	isap:27469110	0.272458
iron	isap:2430972	0.272150
hydroxy	isap:430087359	0.267915
c	isap:299954485	0.265318
o	isap:299897049	0.263954
carbene	isap:437660860	0.259912
antioxidant	isap:138818206	0.250120
cancer	isap:447422998	0.247179
aging	isap:227117055	0.246333
cataract	isap:340773883	0.243506
vinyl	isap:223085414	0.242397
oxygen	isap:441080347	0.229874
surface	isap:432948421	0.225827
e	isap:299218731	0.224962
dpph	isap:8967673	0.222990
damage	isap:445037513	0.211968
chemical	isap:341624482	0.200977
like	isap:9783854	0.200425
lipid	isap:226721207	0.199731
copper	isap:447488447	0.193635
initiator	isap:27462566	0.184765
mitochondrium	isap:477792648	0.179232
cell	isap:6634652	0.173293
skin	isap:8752511	0.173189
cold	isap:4109432	0.171990
flavonoid	isap:24335913	0.168105
melatonin	isap:26523521	0.164621
reaction	isap:345346034	0.164378
result	isap:441949556	0.154602
etc	isap:234321572	0.151985
atom	isap:10831307	0.150017
brain	isap:228966630	0.149235
role	isap:5523688	0.140174
formation	isap:25440188	0.125992
body	isap:11262208	0.124257
ion	isap:232235798	0.118922
disease	isap:434019359	0.113830