Lamination can be defined as a process in which a number of sheets are heat-pressed and glued together to form a permanent bond. In the case of plywood, slices of wood are placed over one another and bonded together using hot-press machines and adhesives. So plywood itself can be thought of as being laminated plywood.
Decorative laminate sheets (also called laminates) are glued over plywood to form a protective and decorative surface. Hence a plywood that has been finished by adding a decorative laminate surface can also be termed as 'Laminated plywood'.
High pressure laminate is manufactured in a fusing process that results in an extra-hard decorative laminate. The multiple layers of kraft papers used for the decorative surface, inner layers and backing layer are all impregnated with phenolic resin and fused together in a multiple step press operation offering a wide range of decorative effects.
These laminates are then bonded to a core board in a separate process with glue under pressure. Heat is often is used to accelerate the curing process.