analysis
analyzing
antibacterial
bacteria
bathroom
biotechnology
bottle
check
checking
chemical
chemist
chemistry
cleaner
cleaning
detergent
developing
doctor
examining
experiment
expertise
foam
glassware
hygiene
lab
laboratory
laundry
liquid
making
man
medical
microbes
microscope
mixing
quality
research
researcher
sample
scientific
scientist
soap
solution
studying
test
testing
toilet
tube
virus
wash
washing
water