A latent variable model is a statistical model that relates a set of variables (so-called manifest variables) to a set of latent variables.
DEFINITION of 'Functional Obsolescence'. A reduction in the usefulness or desirability of an object because of an outdated design feature, usually one that cannot be easily changed.The term is commonly used in real estate, but has a wide application.Next Up. reduction in the usefulness or desirability of an object because of an outdated design feature, usually one that cannot be easily changed. The term is commonly used in real estate, but has a wide application. Next Up.
Osteoporosis, literally 'porous bones', is a gradual lessening of bone density, resulting in bones that are thinner, more porous and less able to support the body. From the time we are infants, our bones are undergoing constant remodeling. Up to about age 35, this remodeling generally results in greater bone mass.