petrochemical

noun 0.849

petrology

noun 0.748

petrography

noun 0.681

petrologist

noun 0.639

phytochemistry

noun 0.630

geochemistry

noun 0.627

organic chemistry

noun 0.618

physical chemistry

noun 0.613

chemical physics

noun 0.609

photochemistry

noun 0.605

petrodiesel

noun 0.593

chemistry

noun 0.582

petroleum coke

noun 0.578

biogeochemistry

noun 0.576

petrolatum

noun 0.575

chemical engineering

noun 0.572

hydrocarbon

noun 0.567

electrochemistry

noun 0.563

nuclear chemistry

noun 0.560

chemical kinetics

noun 0.559

organometallic chemistry

noun 0.557

thermochemistry

noun 0.557

petrosectomy

noun 0.556

radiochemistry

noun 0.553

petrol

noun 0.552

petroleum ether

noun 0.552

stereochemistry

noun 0.547

clinical chemistry

noun 0.545

inorganic chemistry

noun 0.543

soil chemistry

noun 0.542

iatrochemistry

noun 0.541

petrographic microscope

noun 0.541

cosmochemistry

noun 0.539

hydrochemistry

noun 0.539

pyrolysis

noun 0.539

geotechnology

noun 0.538

biochemistry

noun 0.537

photochemical

noun 0.535

white petrolatum

noun 0.534

microchemistry

noun 0.533

chemical ecology

noun 0.533

medicinal chemistry

noun 0.532

chemical plant

noun 0.531

chemical energy

noun 0.528

metallurgy

noun 0.525

computational chemistry

noun 0.525

quantum chemistry

noun 0.524

kerogen

noun 0.524

chemical biology

noun 0.523

oil refinery

noun 0.522

petroleum spirit

noun 0.519

geology

noun 0.518

mineralogy

noun 0.518

sedimentology

noun 0.517

phytochemical

noun 0.516

palaeontology

noun 0.515

photopolymerization

noun 0.513

cytochemistry

noun 0.512

sonochemistry

noun 0.511

paleontology

noun 0.511

petrification

noun 0.511

mechanochemistry

noun 0.511

chemical

noun 0.510

polymerization

noun 0.510

stoichiometry

noun 0.510

palynology

noun 0.509

chemostratigraphy

noun 0.509

pyrometallurgy

noun 0.508

nanochemistry

noun 0.505

hydrocarbyl

noun 0.505

neurochemistry

noun 0.502

pedology

noun 0.501

coordination chemistry

noun 0.501