acid
acidophile
acidophilic
bacilli
bacillus
bacteria
bacterial
bacteriology
bacterium
biological
biology
bulgaricus
cheese
colony
coloured
delbrueckii
electron
false coloured
fermentation
gram
gram positive
lactic
lactobacillus
micro organism
microbe
microbiological
microbiology
micrograph
microorganism
microscope
motile
no one
nobody
non
non motile
positive
producing
rod shaped
scanning
sem
subsp
subspecies
yoghurt
yogurt