What does preformationism mean?
Preformationism is a historical theory in biology that suggests all living organisms are pre-formed in the egg or sperm cell. This theory was widely accepted in the 17th and 18th centuries but was eventually disproven by the discovery of cell division and the development of embryology. The preformationist idea is still used today in some contexts to describe the development of complex systems. However, it is no longer a viable theory in modern biology. Preformationism is a term that is primarily of interest to historians of science and those studying the development of biological thought. It is not a term that is commonly used in modern scientific or academic contexts.
nounA historical theory in biology that all living organisms are pre-formed in the egg or sperm cell, and that the development of the embryo is merely a matter of unfolding or growth.
- A historical theory in biology that all living organisms are pre-formed in the egg or sperm cell, and that the development of the embryo is merely a matter of unfolding or growth.
"The preformationist theory was widely accepted in the 17th and 18th centuries, but was eventually disproven by the discovery of cell division and the development of embryology."
"The preformationist theory was widely accepted in the 17th and 18th centuries, but was eventually disproven by the discovery of cell division and the development of embryology."
"The preformationist idea is still used today in some contexts to describe the development of complex systems."
The plural form of preformationism is used to describe multiple instances of the theory or its application.
"The preformationist theories of the 17th and 18th centuries were widely accepted, but were eventually disproven by the discovery of cell division and the development of embryology."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of preformationism
The term preformationism comes from the Latin words 'pre' meaning 'before' and 'formatio' meaning 'formation'. It was first used in the 17th century to describe the theory that all living organisms are pre-formed in the egg or sperm cell. The theory was developed by several scientists, including Antonie van Leeuwenhoek and Caspar Friedrich Wolff. The term has been used in various contexts since then, including in the history of science and in the study of embryology.
How preformationism is actually used
Preformationism is a historical term and is no longer used in modern biology. However, it is still studied in the context of the history of science.