pyrroline

noun 0.843

pyrrolidone

noun 0.810

pyrrolyl

noun 0.805

tetrapyrrole

noun 0.735

pyridine

noun 0.729

polypyrrole

noun 0.725

pyrrolnitrin

noun 0.720

pyridyl

noun 0.707

porphyrin

noun 0.706

pyrazole

noun 0.702

pyr

noun 0.701

pyrimidine

noun 0.689

pyridinium

noun 0.661

pyrazine

noun 0.655

pyridinol

noun 0.636

pyrene

noun 0.632

pyridylmethyl

noun 0.622

phenylpyridine

noun 0.615

dihydropyran

noun 0.614

pyran

noun 0.614

pyranose

noun 0.610

polypyrimidine

noun 0.604

purine

noun 0.601

pyruvate

noun 0.598

proline

noun 0.596

pyrope

noun 0.595

pya

noun 0.593

polyproline

noun 0.592

pyrochlore

noun 0.591

pyrrhotite

noun 0.590

tetrahydropyran

noun 0.590

thiophene

noun 0.588

polyaromatic

noun 0.587

heterocycle

noun 0.587

pyrethrin

noun 0.586

porphyria

noun 0.584

pyroglutamate

noun 0.584

terpyridine

noun 0.583

pyrogallol

noun 0.581

tropolone

noun 0.581

pyriform

noun 0.576

pyocyanin

noun 0.576

pyridoxine

noun 0.576

pyre

noun 0.572

pyrantel

noun 0.571

heterocyclic

noun 0.571

purpurin

noun 0.569

pyrolysis

noun 0.568

protoporphyrin

noun 0.567

pyro

noun 0.564

pyruvic acid

noun 0.564

uroporphyrinogen

noun 0.563

polycyclic

noun 0.562

porphyry

noun 0.561

methylpyridinium

noun 0.561

carbazole

noun 0.558

pyrenoid

noun 0.556

phenyl

noun 0.555

prolyl

noun 0.554

thiazole

noun 0.554

cyclobutane

noun 0.554

vinylpyrrolidone

noun 0.552

pyrophyllite

noun 0.551

picryl

noun 0.550

polyvinyl pyrrolidone

noun 0.549

tropylium

noun 0.549

bipyridinium

noun 0.548

indole

noun 0.548

pyromorphite

noun 0.546

pyrocatechol

noun 0.545

pyrethrum

noun 0.544

phenylene

noun 0.544

cyclopropene

noun 0.540

propyl

noun 0.539

polypeptide

noun 0.539

pyroxylin

noun 0.538

pyorrhea

noun 0.538

benzopyrene

noun 0.537

imidazole

noun 0.536

pyrogen

noun 0.535

furan

noun 0.535

tetrazole

noun 0.534

quinoline

noun 0.533

propionitrile

noun 0.532

nitrile

noun 0.531

antipyrine

noun 0.530

pyretic

noun 0.530

bornite

noun 0.530

pyrite

noun 0.530

diaminopyridine

noun 0.529

polyurea

noun 0.529

pyrolusite

noun 0.527

propylene

noun 0.527

polyimide

noun 0.526

nitroquinoline

noun 0.526

aziridine

noun 0.526

pyrimethamine

noun 0.526

pipecolic acid

noun 0.526

polyketide

noun 0.526

pulegone

noun 0.524