base
nucleotide
ADP
ATO
ATS
Adenosine DiPhosphate
Automatic Train Operation
Automatic Train Stop
acetylcholine
amide
chlorophyll
collagen
cytokine
diol
enzyme-catalyzed
ferritin
glutamine
glutathione
heme
hemoglobin
lipid
melatonin
mrna
neurotransmitter
nitric
nitric oxide
prostaglandin
tabun
triacylglycerol
triphosphate
tryptophan