acid
acidophile
acidophilic
bacilli
bacillus
bacteria
bacterial
bacteriology
bacterium
biological
biology
bulgaricus
cheese
colony
coloured
delbrueckii
electron
falsecoloured
fermentation
gram
grampositive
lactic
lactobacillus
microbe
microbiological
microbiology
micrograph
microorganism
microscope
motile
nobody
non
nonmotile
noone
positive
producing
rodshaped
scanning
sem
subsp
subspecies
yoghurt
yogurt