amœba
Euglena
adenovirus
aerobe
aerobic bacteria
anaerobe
anaerobic bacteria
animalcule
bacillus
bacteria
bacterium
bug
coccus
colon bacillus
diatom
disease-producing microorganism
dyad
echovirus
enterovirus
filterable virus
flagellate
fungus
germ
gram-negative bacteria
gram-positive bacteria
microbe
microorganism
microspore
microzoa
mold
monad
nematode
nonfilterable virus
paramecium
pathogen
picornavirus
protozoa
protozoon
reovirus
rhinovirus
rickettsia
salmonella
saprophyte
spirillum
spirochete
spore
sporozoon
staphylococcus
streptococcus
tetrad
triad
Rhizopoda
ameba
amoebae
ballplayer
chimaera
gastrula
isms
microorganisms
roughnecks
sea trout
sojer
Bathsheba
Chiba
Curitiba
Sheba
cohiba
gleba
rebbe