水

underwater aquarium

Engineering

integrated hydrant system

glacial lake outburst flood

Chemistry

clathrate hydrate

confined groundwater; artesian groundwater

hydrogeology

hydraulic fracturing; fracking

hydrofracturing; hydraulic fracturing; fracking; fraccing

zinc hydroxide

spray curing; curing of newly-poured and slightly hardened concrete

hydrogen economy; hydrogen energy based society

flush toilet

not getting along well with each other; being like water and oil

sea wasp (Chironex fleckeri)

Monday, Tuesday, Wednesday and Thursday

city built according to the principles of fengshui

full load draft (shipping); gauge

Plimsoll line; load line; load waterline

saturation diving

hydrocerussite

Geology

wulfenite

Law

Fisheries Basic Act

Kaplan turbine

mizukakena (Brassica rapa variety)