Dictionary

All Word
propyl group Noun the monovalent organic group C3H7- obtained from propane
phenyl salicylate Noun a white powder with a pleasant taste and odor
propyl radical Noun the monovalent organic group C3H7- obtained from propane
protease Noun any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
parathion Noun a colorless and odorless toxic oil used as an insecticide
peptidase Noun any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
proteinase Noun any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
ptomain Noun any of various amines (such as putrescine or cadaverine) formed by the action of putrefactive bacteria
Pyrex Noun a borosilicate glass with a low coefficient of expansion
pyrimidine Noun a heterocyclic organic compound with a penetrating odor
pyrimidine Noun any of several basic compounds derived from pyrimidine
pyrope Noun a deep red garnet used as a gemstone
potassium bitartrate Noun a salt used especially in baking powder
pyrophoric alloy Noun an alloy that emits sparks when struck or scratched with steel
potassium hydrogen tartrate Noun a salt used especially in baking powder
pyruvic acid Noun a colorless acid formed as an important intermediate in metabolism or fermentation
pheno-safranine Noun a purplish red water-soluble dye used in microscopy
pine tar Noun a dark viscous substance obtained from the destructive distillation of pine wood
plant material Noun material derived from plants
plant substance Noun material derived from plants
plant product Noun a product made from plant material
plaster of Paris Noun any of several gypsum cements
podzol Noun a soil that develops in temperate to cold moist climates under coniferous or heath vegetation
precipitin Noun an antibody that causes precipitation when it unites with its antigen
pleonaste Noun a dark-colored spinel containing iron
primary solid solution Noun a homogeneous solid that can exist over a range of component chemicals
poisonous substance Noun any substance that causes the injury, illness, or death of a living organism
piperin Noun derived from pepper (especially black pepper)
piperine Noun derived from pepper (especially black pepper)
platelet Noun tiny bits of protoplasm found in vertebrate blood
porphyrin Noun any of various pigments distributed widely in living tissues
protoheme Noun a complex red organic pigment containing iron and other atoms to which oxygen binds
protohemin Noun a reddish-brown chloride of heme
plant toxin Noun any substance produced by plants that is similar in its properties to extracellular bacterial toxin
phytotoxin Noun any substance produced by plants that is similar in its properties to extracellular bacterial toxin
prolamine Noun a simple protein found in plants
protamine Noun a simple protein found in fish sperm
polyvinyl resin Noun a thermoplastic derived by polymerization from compounds containing the vinyl group
proaccelerin Noun a coagulation factor
prothrombin accelerator Noun a coagulation factor
proconvertin Noun a coagulation factor formed in the kidney under the influence of vitamin K
photopigment Noun a special pigment found in the rods and cones of the retina
provitamin Noun vitamin precursor
prothrombinase Noun coagulation factor that is converted to an enzyme that converts prothrombin to thrombin in a reaction that depends on calcium ions and other coagulation factors
provitamin A Noun an orange isomer of an unsaturated hydrocarbon found in many plants
plasma thromboplastin antecedent Noun coagulation factor whose deficiency results in a hemorrhagic tendency
protirelin Noun hormone released by the hypothalamus that controls the release of thyroid-stimulating hormone from the anterior pituitary
pitchblende Noun a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium
prothrombin Noun a protein in blood plasma that is the inactive precursor of thrombin
paraffin wax Noun from crude petroleum