polypyrimidine

noun 0.832

thymine

noun 0.745

pyridine

noun 0.729

uracil

noun 0.713

purine

noun 0.711

pyrroline

noun 0.697

cytosine

noun 0.692

pyrrole

noun 0.689

pyridinium

noun 0.649

uridine

noun 0.646

pyridyl

noun 0.642

pyrrolidone

noun 0.641

purpurin

noun 0.641

pyrrolyl

noun 0.635

pyr

noun 0.633

pyrimethamine

noun 0.630

pyrazine

noun 0.605

pyrene

noun 0.599

nucleobase

noun 0.597

aminopurine

noun 0.590

pyrazole

noun 0.585

pyridylmethyl

noun 0.583

tetrapyrrole

noun 0.583

pyridinol

noun 0.580

adenine

noun 0.579

porphyrin

noun 0.579

polynucleotide

noun 0.578

terpyridine

noun 0.578

pyramidal

noun 0.577

bipyridinium

noun 0.571

pyruvate

noun 0.570

tetrahydropyran

noun 0.569

nucleotide

noun 0.568

guanine

noun 0.566

pyridoxine

noun 0.564

pya

noun 0.563

pyrrolnitrin

noun 0.563

nucleoside

noun 0.562

pyran

noun 0.557

mononucleotide

noun 0.556

pyranose

noun 0.556

polyamine

noun 0.555

pyriform

noun 0.555

phenylpyridine

noun 0.554

thiophene

noun 0.554

pyruvic acid

noun 0.553

dihydropyran

noun 0.552

polyurethane

noun 0.550

diaminopyridine

noun 0.550

cyclobutane

noun 0.550

thiazole

noun 0.547

methylpyridinium

noun 0.546

uranium

noun 0.544

polyimide

noun 0.541

cyclic nucleotide

noun 0.540

bipyramid

noun 0.539

nitramine

noun 0.539

dihydropyrimidine dehydrogenase

noun 0.538

pyramids

noun 0.537

orotidine

noun 0.537

barbituric acid

noun 0.536

imidazole

noun 0.535

pyrethrin

noun 0.534

urea

noun 0.532

aziridine

noun 0.531

polymyxin

noun 0.531

phosphoramidite

noun 0.531

proline

noun 0.530

bromouracil

noun 0.530

dihydropyridine

noun 0.528

tyramine

noun 0.526

lutidine

noun 0.526

pyromorphite

noun 0.525

pyramid

noun 0.524

phenylurea

noun 0.524

guanosine

noun 0.524

uric acid

noun 0.524

diamine

noun 0.524

polyurea

noun 0.523

pyrenoid

noun 0.523

spermidine

noun 0.523

pyrethrum

noun 0.521

xanthine

noun 0.521

pyre

noun 0.520

polymerase

noun 0.519

dinucleotide

noun 0.519

cyanamide

noun 0.518

pyrogen

noun 0.518

pyrophosphate

noun 0.518

thymol

noun 0.518

terpene

noun 0.518

pentyne

noun 0.518

uraninite

noun 0.518

phenylene

noun 0.517

pyrophosphorylase

noun 0.517

phthalimide

noun 0.517

carbamyl

noun 0.516

antipyrine

noun 0.516

cytarabine

noun 0.516

polypyrrole

noun 0.516