cytosine

1. A pyrimidine base, C4H5N3O, that is the constituent of DNA and RNA involved in base pairing with guanine.

2. A pyrimidine base CHNO that codes genetic information in the polynucleotide chain of DNA or RNA.

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Here are some other words you could make with the letters cytosine, you can also
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Top Words by points	Points	Word Game
cytosine	13	Scrabble

2 Letters	Scrabble® Points
en	2
es	2
et	2
in	2
is	2
it	2
ne	2
no	2
oe	2
oi	2
on	2
os	2
oy	5
si	2
so	2
te	2
ti	2
to	2
ye	5
yo	5

3 Letters	Scrabble® Points
cis	5
con	5
cos	5
cot	5
coy	8
eco	5
ens	3
eon	3
est	3
ice	5
icy	8
ins	3
ion	3
its	3
net	3
nit	3
nos	3
not	3
oes	3
one	3
ons	3
ose	3
sec	5
sei	3
sen	3
set	3
sic	5
sin	3
sit	3
soc	5
son	3
sot	3
soy	6
sty	6
syn	6
tec	5
ten	3
tes	3
tic	5
tie	3
tin	3
tis	3
toe	3
ton	3
toy	6
tye	6
yen	6
yes	6
yet	6
yin	6
yon	6

4 Letters	Scrabble® Points
cent	6
cine	6
cion	6
cist	6
cite	6
city	9
coin	6
cone	6
coni	6
cons	6
cony	9
cost	6
cosy	9
cote	6
cots	6
coys	9
cyst	9
ecos	6
eons	4
etic	6
ices	6
icon	6
into	4
ions	4
nest	4
nets	4
nice	6
nite	4
nits	4
noes	4
nose	4
nosy	7
note	4
once	6
ones	4
otic	6
oyes	7
scot	6
sect	6
sent	4
sice	6
sine	4
site	4
snit	4
snot	4
snye	7
sone	4
stey	7
stye	7
syce	9
sync	9
syne	7
tecs	6
tein	4
tens	4
tics	6
ties	4
tine	4
tins	4
tiny	7
tiyn	7
toes	4
tone	4
tons	4
tony	7
toys	7
tyes	7
tyin	7
tyne	7
yens	7
yeti	7
yins	7
yoni	7

5 Letters	Scrabble® Points
cento	7
cents	7
cesti	7
cines	7
cions	7
cites	7
coins	7
cones	7
coney	10
conte	7
coset	7
cosey	10
cosie	7
cotes	7
cyton	10
eosin	5
escot	7
etics	7
icons	7
inset	5
neist	5
nites	5
noise	5
noisy	8
nosey	8
notes	5
oncet	7
onset	5
ontic	7
scent	7
scion	7
scone	7
senti	5
seton	5
since	7
sonic	7
stein	5
steno	5
stoic	7
stone	5
stony	8
sycon	10
teins	5
tines	5
tiyns	8
tones	5
toney	8
tonic	7
tynes	8
yetis	8
yince	10
yonic	10
yonis	8
tyins	8

6 Letters	Scrabble® Points
centos	8
cestoi	8
coneys	11
conies	8
contes	8
cosine	8
coyest	11
cytons	11
encyst	11
icones	8
incest	8
insect	8
nicest	8
nicety	11
noetic	8
notice	8
oscine	8
stoney	9
tocsin	8
tonics	8

7 Letters	Scrabble® Points
cystein	12
cystine	12
notices	9
section	9
society	12

8 Letters	Scrabble® Points
cytosine	13