15 Letter Words
phytoplanktonic
31
boustrophedonic
25
photoelectronic
24
microelectronic
23
radiotelephonic
23
interelectronic
19
thanatognomonic
23
13 Letter Words
polyembryonic
27
postembryonic
24
heterochronic
23
pathognomonic
23
architectonic
22
electrophonic
22
polycistronic
22
preganglionic
19
isoelectronic
17
nonelectronic
17
zooplanktonic
30
12 Letter Words
quadraphonic
29
quadriphonic
29
quadrophonic
29
amphictyonic
26
chromophonic
26
chordophonic
25
philharmonic
24
dodecaphonic
23
autochthonic
22
anticyclonic
21
opisthotonic
19
stereophonic
19
technetronic
19
viscerotonic
19
antimnemonic
18
cerebrotonic
18
electrotonic
16
mesenteronic
16
peristeronic
16
zwitterionic
26
11 Letter Words
schizogonic
28
paroxytonic
25
photophonic
23
synkaryonic
23
dysharmonic
22
microphonic
22
chalcedonic
21
gramophonic
21
cacodemonic
20
chameleonic
20
mechatronic
20
subharmonic
20
anglophonic
19
arachidonic
19
disharmonic
19
radiophonic
19
decameronic
18
freemasonic
18
nonharmonic
18
tautophonic
18
aniseikonic
17
heterogonic
17
cardiotonic
16
geotectonic
16
animatronic
15
10 Letter Words
oxymoronic
24
polyaxonic
24
saxophonic
24
homophonic
22
phosphonic
22
polyphonic
22
cacophonic
21
hydroponic
21
hypersonic
20
hypertonic
20
megaphonic
20
phlegmonic
20
synchronic
20
acrophonic
19
cataphonic
19
monophonic
19
paraphonic
19
periphonic
19
diachronic
18
hyaluronic
18
idiophonic
18
planktonic
18
allophonic
17
anachronic
17
anharmonic
17
9 Letter Words
symphonic
21
dysphonic
20
excitonic
20
monaxonic
20
exergonic
19
halcyonic
19
hypotonic
19
tachyonic
19
auxotonic
18
cinchonic
18
embryonic
18
myoclonic
18
polyconic
18
diaphonic
17
hegemonic
17
benthonic
16
chorionic
16
fermionic
16
homotonic
16
pharaonic
16
sulphonic
16
anhedonic
15
gnathonic
15
iseikonic
15
macaronic
15
8 Letter Words
chthonic
18
phytonic
18
pythonic
18
typhonic
18
cyclonic
17
hydronic
17
glyconic
16
baryonic
15
chalonic
15
euphonic
15
harmonic
15
hormonic
15
myotonic
15
photonic
15
siphonic
15
vibronic
15
carbonic
14
dystonic
14
hadronic
14
mnemonic
14
nektonic
14
peptonic
14
pulmonic
14
daemonic
13
daimonic
13
7 Letter Words
aphonic
14
chronic
14
cryonic
14
ammonic
13
bubonic
13
gyronic
13
hedonic
13
ketonic
13
meconic
13
obconic
13
umbonic
13
avionic
12
demonic
12
holonic
12
thionic
12
tyronic
12
acronic
11
boronic
11
bosonic
11
canonic
11
colonic
11
laconic
11
malonic
11
masonic
11
mesonic
11