TPS specifically identified seven types of waste or muda: 1  Waste of overproduction or overburden. 2  Waste of time on hand or waiting period. 3  Waste of transportation and shipping. 4  Waste of processing. 5  Waste of keeping stock in hand. 6  Waste of movement. 7  Waste of making defective products.
A phase, or state of matter, is a domain within a many-body system within which relevant physical properties are uniform. Relevant properties may include chemical composition, stoichiometry, and density, which do not reflect how the components are arranged in space.
n, pl -tries. 1. (Chemistry) the branch of physical science concerned with the composition, properties, and reactions of substances. See also inorganic chemistry, organic chemistry, physical chemistry. 2. (Chemistry) the composition, properties, and reactions of a particular substance. 3. the nature and effects of any complex phenomenon: the chemistry of humour. 4. informal a reaction, taken to be instinctual, between two persons.