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Chemistry Glossary Terms Starting with the Letter P

Chemistry Glossary and Dictionary

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P is for periodic table.

P is for periodic table.

Alfred Pasieka, Getty Images

This chemistry glossary offers definitions for terms which are commonly used in chemistry and chemical engineering.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

p orbital

pair annihilation

pair production

palladium

para

paraffin

paramagnetism

parent atom

parent nuclide

partial pressure

particulate

particulate matter

parts per billion

parts per million

patent isotope

Pascal (Pa)

passivity

pathogen

patina

Pauli exclusion principle

PBDE

PCB

pentose

peptidase

peptide

peptide bond

percent composition

percent error

percent yield

perchlorate

perfect crystal

peri-

periplanar

period

periodic law

periodic table

periodic trend

periodicity

permanganate

permissible exposure limit (PEL)

peroxide

peroxide group

peroxo group

peta

petrochemistry

petroleum

pH

pharmacology

phase

phase boundary

phase change

phase diagram

phase transition

phe

phenol

phenolphthalein

phenyl group

pheromone

philosopher's wool

pH indicator

phlogisticated air

phlogiston

pH meter

phosphate

phospholipid

phosphatase

phosphorescence

phosphorolysis

phosphorus

phosphorylase

photochemistry

photodecomposition

photoelectric effect

photoelectron

photon

photosynthesis

physical change

physical chemistry

physical property

physics

phytochemical

phytochemistry

pi bond

pico

piezoelectric

pKa

pKb

Planck's constant

plasma

plasmid

plastic

platinum

plumbum

pnictogen

pOH

polar bond

polar molecule

polonium

polyamide

polyatomic ion

polyatomic molecule

polycyclic aromatic hydrocarbon

polydentate

polyester

polymath

polymer

polymerization

polymerize

polymorphism

polynuclear aromatic hydrocarbon

polypeptide

polyprotic acid

polysaccharide

positron

potash

potassium

potential difference

potential energy

power

PPB

PPM

praseodymium

precipitate

precipitation

precipitation reaction

precision

pressure

pressure relief valve

primary alcohol

primary amide

primary amine

primary carbon

primary standard

principal energy level

principal quantum number

principal species

prion

pro

product

proenzyme

promethium

proof

property

propogation reaction

protactinium

protease

protein

protiation

protide

protio group

protium

proton

protonation

proton emission

PSI

psi (Ψ)

p-type semiconductor

pure substance

pyramidal

pyrophoric

pyrometallurgy

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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