hydrogenic
hydrogen halide
tetracyanoquinodimethane
deutero-
hydrogenotrophic
reformer
biohydrogenation
hydrocarbon
hydrochloric acid
chlorohydric acid
carbohydride
muriatic acid
hydrogenlyase
denucleation
HOCN
thiocyanate
difluoroethylene
Zyklon B
hydrogenotrophy
paracyanogen
cyclopentanol
yellow prussiate of potash
dodecahydroxide
fluorohydride
potassium ferrocyanide
gray ammonia
cycloadduct
cymidine
hydrofluoric
hydrocyanation
dideoxyribonucleoside
lettsomite
hydrogenolytic
hydrolith
dimethyl acetylenedicarboxylate
cystidial
hydrolysate
procyanidolic
superhydride
cyanize
electrohydrogenesis
hydroferrocyanic
cyanogenesis
hydridic
hydrogen disulfide
rotten egg gas
hydrosulfuric acid
swamp gas