heavy water

noun 0.788

deuterium

noun 0.772

hydrogen

noun 0.719

deuterated water

noun 0.711

parahydrogen

noun 0.682

deuteride

noun 0.681

dihydrogen

noun 0.680

tritiated water

noun 0.647

tritium

noun 0.640

protium

noun 0.634

hydrogen bomb

noun 0.629

oxyhydrogen

noun 0.623

hydrogen halide

noun 0.622

hydrogen iodide

noun 0.620

antihydrogen

noun 0.620

hydrogen fluoride

noun 0.612

hydride

noun 0.609

hydrogen ion

noun 0.602

hydrogen bromide

noun 0.601

biohydrogen

noun 0.600

metal hydride

noun 0.596

hydrogen bond

noun 0.588

hydrogen sulfate

noun 0.588

titanium hydride

noun 0.587

standard hydrogen electrode

noun 0.587

hydrogen electrode

noun 0.586

superheavy

noun 0.585

hydrogenation

noun 0.584

hydrogen cyanide

noun 0.581

hydronium

noun 0.579

hydrogen sulfide

noun 0.576

hydrogen burning

noun 0.575

liquid helium

noun 0.574

hydrodeoxygenation

noun 0.573

hydrogenolysis

noun 0.573

hydrogen line

noun 0.572

hydrogen chloride

noun 0.565

deuteron

noun 0.560

hydrogen selenide

noun 0.556

hydrogen peroxide

noun 0.555

hydro

noun 0.554

hafnium

noun 0.553

hexaboride

noun 0.553

helium

noun 0.551

hydrogen economy

noun 0.551

lithium hydride

noun 0.550

hydrogen sulphate

noun 0.550

hydrogen spectrum

noun 0.549

aluminium hydride

noun 0.548

hydrocarbon

noun 0.543

holmium

noun 0.541

transhydrogenase

noun 0.540

hydrazine

noun 0.539

dysprosium

noun 0.535

hydriodic acid

noun 0.533

tetrahydro

noun 0.533

hydroxyl

noun 0.533

halogen

noun 0.530

hydration

noun 0.529

halocarbon

noun 0.529

light water

noun 0.529

dimethylhydrazine

noun 0.528

hydrogenosome

noun 0.528

hadron

noun 0.527

dihydrate

noun 0.527

water vapor

noun 0.526

vapour density

noun 0.525

hyperon

noun 0.525

hydrosulfide

noun 0.523

hydrotreatment

noun 0.522

hexafluoride

noun 0.520

hydrogen sulfite

noun 0.518

depleted uranium

noun 0.518

heliox

noun 0.517

hydroperoxyl

noun 0.517

hyperhydration

noun 0.516

dehydrogenase

noun 0.516

bound water

noun 0.513

isotope

noun 0.513

dehydrogenation

noun 0.513

hydrate

noun 0.512

muonium

noun 0.511

hydrogen carbonate

noun 0.511

water gas

noun 0.511

borohydride

noun 0.511

enriched uranium

noun 0.510

hydroxylamine

noun 0.509

hexafluorobenzene

noun 0.509

carbon-12

noun 0.507

transuranic

noun 0.506

uranium

noun 0.505

atomic weight

noun 0.505

gas hydrate

noun 0.503

hydrometeor

noun 0.502

isotope dilution

noun 0.501