Countable Nouns Ending in IS and Containing SI
Browse 759 valid English countable nouns ending in IS and containing SI, from Analysis, Basis, Crisis, Emphasis, Diagnosis, Thesis and Hypothesis to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.
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Starts with A
24 words analysis
antithesis
apotheosis
acidosis
amniocentesis
amyloidosis
anastomosis
anamnesis
apheresis
autolysis
arabidopsis
alkalosis
amanuensis
atelectasis
apsis
apoapsis
apophysis
amebiasis
aponeurosis
arthrodesis
aspergillosis
anamorphosis
ankylosis
agenesis
Starts with B
24 words basis
biosynthesis
bursitis
biocatalysis
bombogenesis
bronchiectasis
blastomycosis
bacteriolysis
bacteriosis
biocenosis
bronchostenosis
bronchiostenosis
bronchomycosis
blepharophimosis
broncholithiasis
blepharostenosis
blepharolithiasis
botryomycosis
bronchoaspergillosis
biolysis
bacteriodiagnosis
blepharodiastasis
bronchomucormycosis
blepharosymphysis
Starts with C
24 words crisis
chassis
catharsis
cirrhosis
cyanosis
catalysis
carcinogenesis
cassis
catechesis
cytokinesis
cholelithiasis
cryptanalysis
coreopsis
coccidiosis
chondromatosis
crasis
cysticercosis
classis
catachresis
catabasis
carcinomatosis
chemosis
cladogenesis
coccidioidomycosis
Starts with D
24 words diagnosis
dialysis
diuresis
diathesis
deemphasis
diegesis
dermatosis
diaeresis
diastasis
diaphysis
diesis
diapedesis
dermatophytosis
diarthrosis
dysgenesis
diaschisis
dermatomycosis
dermomycosis
diapophysis
deplasmolysis
diacrisis
desmosis
diorthosis
dermatoneurosis
Starts with E
24 words emphasis
ellipsis
exegesis
electrophoresis
endocytosis
emesis
exocytosis
epistasis
ecchymosis
ethnogenesis
ekphrasis
exosmosis
epiphysis
endosymbiosis
ecdysis
ecstasis
eisegesis
electrosynthesis
entasis
epenthesis
endosmosis
erythrocytosis
exostosis
epiclesis
Starts with F
4 words frontolysis
fasciolopsis
flagellosis
fasciodesis
Starts with G
12 words genesis
gametogenesis
gliosis
glossitis
gomphosis
granulosis
gummosis
gliomatosis
gastroanastomosis
gastroenteroanastomosis
gastrocoloptosis
gerontomorphosis
Starts with H
24 words hypothesis
hypnosis
hydrolysis
hysteresis
hemodialysis
hemochromatosis
hypophysis
hypostasis
hemiparesis
hydronephrosis
hyperkeratosis
hyperlordosis
hyperostosis
hypervitaminosis
helminthiasis
hallucinosis
heliopsis
homolysis
hydrogenolysis
hematolysis
heterokaryosis
heterolysis
histolysis
holophrasis
Starts with I
11 words iconostasis
ichthyosis
iontophoresis
immunoelectrophoresis
immunodiagnosis
ionophoresis
interkinesis
illadopsis
ixodiasis
immunophoresis
ipomopsis
Starts with K
12 words ketoacidosis
kurtosis
kyphosis
kinesis
keratosis
katabasis
karyokinesis
keratomileusis
kribensis
karyolysis
kenogenesis
kyllosis
Starts with L
19 words lysis
lipolysis
lordosis
leishmaniasis
lachesis
leukocytosis
lithiasis
lipomatosis
lymphocytosis
leucosis
leukosis
lymphogranulomatosis
lymphangiectasis
lipidosis
lyolysis
lymphosarcomatosis
lipoidosis
laryngoparalysis
lymphadenectasis
Starts with M
24 words metamorphosis
metastasis
meiosis
misdiagnosis
mitosis
mutagenesis
metathesis
metempsychosis
mydriasis
miosis
mycosis
misanalysis
melioidosis
melanosis
microanalysis
myiasis
metalepsis
mycotoxicosis
mythopoesis
metanalysis
misemphasis
morphosis
mythogenesis
mucopolysaccharidosis
Starts with N
15 words nemesis
neurosis
necrosis
narcosis
nephrosis
noncrisis
neurolysis
neurohypophysis
nearthrosis
narcoanalysis
nephroptosis
nonmetamorphosis
narcocatharsis
nephroangiosclerosis
nephrocoloptosis
Starts with O
18 words oasis
osmosis
overemphasis
overdiagnosis
overanalysis
osteonecrosis
organogenesis
osteoarthrosis
osteopetrosis
orthosis
orogenesis
onomatopoiesis
ozonolysis
onychocryptosis
osteoclasis
ophthalmomycosis
ophthalmodiagnosis
ophthalmomyositis
Starts with P
24 words paralysis
prognosis
psychosis
psychoanalysis
parenthesis
psoriasis
prosthesis
pathogenesis
pyrolysis
phagocytosis
prolepsis
plasmapheresis
proteolysis
phimosis
protasis
ptosis
periphrasis
periapsis
pneumoconiosis
psychoneurosis
paracentesis
parasitosis
photolysis
pheresis
Starts with R
8 words reanalysis
resynthesis
restenosis
reemphasis
radiolysis
resinosis
rachischisis
rhipsalidopsis
Starts with S
24 words synthesis
sis
synopsis
sclerosis
stasis
sinusitis
symbiosis
scoliosis
stenosis
symphysis
synapsis
spondylosis
spondylolisthesis
syllepsis
synchondrosis
syndesmosis
synarthrosis
spondylolysis
semiosis
siris
solenopsis
syneresis
synostosis
sialadenitis
Starts with T
24 words thesis
thrombosis
thrombolysis
trypanosomiasis
tendinosis
thyrotoxicosis
thoracentesis
toxicosis
tmesis
teniasis
telangiectasis
thermolysis
taeniasis
transgenesis
thoracocentesis
trichiasis
thanatopsis
tussis
tylosis
trichuriasis
treponematosis
trichosis
thlipsis
theriomorphosis
Starts with U
8 words urinalysis
underdiagnosis
urolithiasis
underemphasis
ulosis
urosis
ureterostegnosis
ureterocystanastomosis
Starts with V
5 words vaginosis
vibriosis
virosis
varicosis
visceroptosis
Starts with W
3 words whosis
whoosis
whatsis
Starts with X
4 words xanthomatosis
xenodiagnosis
xenogenesis
xenomorphosis
Starts with Z
6 words zoonosis
zygapophysis
zygosis
zymosis
zymolysis
zoosis