Nouns denoting substances

O (continued)

oleoresin
oleoresin capiscum
olibanum
oligo
oligoclase
oligonucleotide
oligosaccharide
olivenite
olivine
olla
omega-3
omega-3 fatty acid
omega-6
omega-6 fatty acid
omeprazole
onionskin
onyx
onyx marble
ooze
ooze leather
opal
opal glass
opaque gem
opopanax
opsin
opsonin
optical crown
optical crown glass
optical flint
optical glass
Oradexon
orange
Orasone
orchil
ordure
ore
oreide
organic
organic compound
organic fertiliser
organic fertilizer
organophosphate
organophosphate nerve agent
oriental alabaster
ormolu
ornithine
oroide
orpiment
orthoboric acid
orthoclase
orthophosphate
orthophosphoric acid
orthophosphorous acid
Os
osmiridium
osmium
osseous tissue
Otaheite arrowroot
Otaheite arrowroot starch
ottar
otter
ovoflavin
oxalacetate
oxalacetic acid
oxalate
oxalic acid
oxaloacetate
oxaloacetic acid
oxidant
oxidase
oxidation-reduction indicator
oxide
oxidiser
oxidized LDL cholesterol
oxidizer
oxidizing agent
oxidoreductase
oxime
oxyacetylene
oxyacid
oxybenzene
oxybutyric acid
oxygen
oxygen acid
oxygenase
oxyhaemoglobin
oxyhemoglobin
ozocerite
ozokerite
ozone
ozonide

P

P
Pa
PABA
packing
packing material
pad
pad of paper
pahoehoe
palladium
palmitic acid
palmitin
pancreatin
pantile
pantothen
pantothenic acid
papain
paper
paper tape
paper toweling
paper-mache
paperboard
papier-mache
papyrus
para aminobenzoic acid
Para rubber
paraffin
paraffin oil
paraffin scale
paraffin series
paraffin wax
paragonite
paraldehyde
paraquat
parathion
parchment
parget
pargeting
pargetting
Paris green
particle
particulate
particulate matter
paste
pasteboard
patent leather
pavement
paving
paving material
pay dirt
Payne's gray
Payne's grey
Pb
PBS
Pd
peacock ore
pearl ash
pearl sago
pearlite
peat
pectic acid
pectin
Pediapred
pediculicide
pee
pegmatite
pelt
pencil
penicillinase
pentanoic acid
pentlandite
pentose
pentoxide
pepsin
pepsinogen
peptidase
peptide
Pepto-bismal
peptone
perboric acid
perchlorate
perchloric acid
perchloride
perchloromethane
percolate
perfect gas
perfluorocarbon
periclase
peridot
peridotite
periodic acid
Permalloy
permanganate
permanganate of potash
permanganic acid
peroxidase
peroxide
Persian lamb
Perspex
pesticide
petrochemical
petrol
petrolatum
petroleum
petroleum jelly
pewter
PFC
phellem
pheno-safranine
phenol
phenolic
phenolic plastic
phenolic resin
phenolic urea
phenoplast
phenothiazine
phenyl salicylate
phenylalanine
phenylamine
phenylethylene
phenylic acid
pheromone
phillipsite
philosopher's stone
philosopher's wool
philosophers' stone
philosophers' wool
phlogiston
phlogopite
phosgene
phosphatase
phosphate
phosphate buffer solution
phosphine
phosphocreatine
phospholipid
phosphoprotein
phosphor
phosphor bronze
phosphoric acid
phosphorous acid
phosphorus
photopigment
phthalic acid
phthalic anhydride
phylloquinone
phytochemical
phytohormone
phytonadione
phytotoxin
picric acid
piddle
pig iron
pig lead
pigeon droppings
pigment
pigskin
pillow lava
pina cloth
pinchbeck
pine knot
pine tar
pinite
pipeclay
piperin
piperine
pisang wax
piss
pit run
pit-run gravel
pitch
pitchblende
pitchstone
plagioclase
plank
planking
plant fiber
plant fibre
plant food
plant hormone
plant material
plant product
plant substance
plant toxin
plasma
plasma protein
plasma thromboplastin antecedent
plasmin
plasminogen
plasminogen activator
plaster
plaster of Paris
plastic
Plasticine
plasticiser
plasticizer
platelet
platinum
platinum black
pleonaste
Plexiglas
plexiglass
plumbago
pluton
plutonic rock
plutonium
plutonium 239
Pm
Po
podsol
podsol soil
podsolic soil
podzol
podzol soil
poison
poison gas
poisonous substance
polish
pollucite
pollutant
polonium
polyamide
polybutene
polybutylene
polyelectrolyte
polyester
polyester fiber
polyethylene
polyfoam
polymer
polymerase
polymeric amide
polymethyl methacrylate
polynucleotide
polyose
polypeptide
polyphosphate
polyphosphoric acid
polypropene
polypropylene
polysaccharide
polystyrene
polytetrafluoroethylene
polythene
polyunsaturated fat
polyunsaturated fatty acid
polyurethan
polyurethane
polyurethane foam
polyvinyl acetate
polyvinyl chloride
polyvinyl resin
polyvinyl-formaldehyde
poop
porcelain clay
porphyrin
porphyritic rock
porphyry
porpoise oil
Portland cement
poster board
posterboard
pot metal
potash
potash alum
potash muriate
potassium
potassium acid carbonate
potassium alum
potassium bicarbonate
potassium bitartrate
potassium bromide
potassium carbonate
potassium chlorate
potassium chloride
potassium cyanide
potassium dichromate
potassium ferrocyanide
potassium hydrogen carbonate
potassium hydrogen tartrate
potassium hydroxide
potassium iodide
potassium muriate
potassium nitrate
potassium permanganate
potassium sodium tartrate
potter's clay
potter's earth
powder
Pr
prairie soil
praseodymium
precious coral
precipitant
precipitate
precipitin
precursor
prednisolone
prednisone
pregnanediol
pregnant chad
Prelone
preparation
preservative
Prevacid
Prilosec
primary solid solution
printer's ink
printing ink
proaccelerin
proconvertin
producer gas
product
proenzyme
progesterone
progestin
progestogen
prolactin
prolamine
proline
promethium
propanal
propanamide
propane
propanediol
propanoic acid
propanol
propanone
propellant
propellent
propenal
propene
propenoate
propenoic acid
propenonitrile
propenyl alcohol
propionaldehyde
propionic acid
proprionamide
propyl
propyl alcohol
propyl group
propyl radical
propylene
propylene glycol
propylthiouracil
prostate specific antigen
protactinium
protamine
protease
protein
proteinase
proteolytic enzyme
proteome
prothrombin
prothrombin accelerator
prothrombinase
protirelin
protoactinium
protoheme
protohemin
Provera
provirus
provitamin
provitamin A
Prussian blue
prussic acid
PSA
pseudoephedrine
psilomelane
Pt
pteroylglutamic acid
pteroylmonoglutamic acid
ptomain
ptomaine
ptyalin
Pu
pudding stone
puddle
puke
pulp
pulpwood
pulverisation
pulverization
pumice
pumice stone
punk
pure gold
purine
putrescine
putty
PVA
PVC
pyrectic
pyrene
Pyrex
pyridine
pyridoxal
pyridoxamine
pyridoxine
pyrimidine
pyrite
pyrites
pyrocellulose
pyrogallic acid
pyrogallol
pyrogen
pyroligneous acid
pyrolusite
pyromorphite
pyrope
pyrophoric alloy
pyrophosphate
pyrophosphoric acid
pyrophyllite
pyroxene
pyroxylin
pyroxyline
pyrrhotine
pyrrhotite
pyruvic acid

Q

quartz
quartz glass
quartzite
quassia
quaternary ammonium compound
quenched steel
quercitron
quicklime
quicksilver
quinone
quintessence

R

Ra
rabbit
raccoon
racemic acid
raddle
radical
radioactive dust
radioactive material
radioactive waste
radiocarbon
radiochlorine
radioisotope
radiopaque dye
radiothorium
radium
radon
raffia
raffinose
rag paper
ragweed pollen
rain
rainwater
raphia
rare earth
rare-earth element
ratsbane
rauwolfia
raveling
ravelling
raw material
raw sienna
raw umber
raw wood
raw wool
rawhide
Rb
Re
reactant
reagent
reagin
realgar
recombinant deoxyribonucleic acid
recombinant DNA
recombinant protein
recycling
red brass
red clay
red coral
red fire
red lead
red silk cotton
red tide
red-lead putty
reddle
reducer
reducing agent
reductant
reductase
refrigerant
refuse
regosol
regur
regur soil
reinforced concrete
releasing factor
releasing hormone
Remicade
remover
render
renin
rennet
rennin
rensselaerite
repellant
repellent
resid
residual clay
residual oil

NEXT PAGE