A theory of biological advancement holding that species evolve because of the inheritance of traits acquired or changed through usage or disuse of parts of the body.
The theory that architectural variations, characteristic of types and genera, are produced in creatures and plants by the direct influence of real surroundings, and especially, when it comes to creatures, by effort, or by use or disuse of specific body organs.
the idea that structural variants, characteristic of types and genera, are produced in pets and flowers by the direct influence of physical environments, and esp., regarding creatures, by energy, or by usage or disuse of certain organs. Its a discredited principle, not thought by contemporary biologists.
In biology, the overall human body of doctrine propounded because of the French naturalist J. B. P. A. de Monet de Lamarck (1744–1829); the idea of development as maintained by him at the beginning of the nineteenth century, on effect that all flowers and creatures tend to be descended from a common primitive as a type of life.
The doctrine your generation of an organism from an egg is epigenesis or new development.
a theory of organic development claiming that obtained traits are sent to offspring