muon neutrino

noun 0.721

positronium

noun 0.647

muon

noun 0.643

antihydrogen

noun 0.575

quarkonium

noun 0.574

mun

noun 0.566

charmonium

noun 0.565

meson

noun 0.557

antiproton

noun 0.556

antielectron

noun 0.554

nuclear magneton

noun 0.554

immonium

noun 0.553

atomic mass unit

noun 0.550

oxonium

noun 0.550

onium

noun 0.547

ammonium

noun 0.546

phosphonium

noun 0.542

aminium

noun 0.539

sulfonium

noun 0.538

bromonium

noun 0.537

monoammonium

noun 0.537

mho

noun 0.532

antimatter

noun 0.529

electron neutrino

noun 0.526

monoisotopic

noun 0.526

neutrino

noun 0.525

magneton

noun 0.525

positron

noun 0.519

polonium

noun 0.519

antibaryon

noun 0.519

antineutrino

noun 0.514

tau neutrino

noun 0.513

atomic

noun 0.512

hydronium

noun 0.512

heavy hydrogen

noun 0.511

americium

noun 0.510

bromonium ion

noun 0.509

monoamine

noun 0.508

proton

noun 0.507

magnetic monopole

noun 0.507

alpha particle

noun 0.504

hyperon

noun 0.503

dimethylammonium

noun 0.503

holmium

noun 0.502

monomethyl

noun 0.502

strange quark

noun 0.501

antiquark

noun 0.501

fermion

noun 0.500