Joseph Priestley
Joseph Priestley
Joseph Priestley (pronounced: JOH-zef PRIEST-lee) was an 18th-century English chemist, natural philosopher, separatist, and theologian who is best known for his discovery of oxygen, which he called "dephlogisticated air," and his work on photosynthesis. He also made significant contributions to electrical theory and the history of science.
Etymology
The name "Joseph Priestley" is of English origin. "Joseph" is a biblical name, derived from the Hebrew name Yosef, meaning "he will add." "Priestley" is a surname of Old English origin, meaning "priest's meadow."
Related Terms
- Chemistry: The branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
- Oxygen: A chemical element of atomic number 8 and symbol O. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
- Photosynthesis: The process by which green plants and some other organisms use sunlight to synthesize foods with the aid of chlorophyll pigments. Oxygen is produced as a by-product.
- Theology: The study of the nature of God and religious belief.
External links
- Medical encyclopedia article on Joseph Priestley
- Wikipedia's article - Joseph Priestley
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