
Description, Types, Preparation, & Facts - Britannica
A pharmaceutical is a substance used in the diagnosis, treatment, or prevention of disease and for restoring, correcting, or modifying organic functions.
Pharmaceutical industry | Definition, Overview, History ...
Nov 1, 2025 · The pharmaceutical industry entails the discovery, development, and manufacture of drugs and medications (pharmaceuticals) by public and private organizations.
Hemisphere | Description, Types, & Facts | Britannica
Hemisphere, in geometry and geography, half of a sphere. Although any spherical body can be divided into an infinite number of hemispheres, geographers often divide Earth’s surface into four …
Solvent | Definition, Examples, & Facts | Britannica
Nov 19, 2025 · Solvent, substance, ordinarily a liquid, in which other materials dissolve to form a solution. Polar solvents (e.g., water) favor formation of ions; nonpolar ones (e.g., hydrocarbons) do …
Pharaoh | Definition, History, & Facts | Britannica
4 days ago · Pharaoh, originally, the royal palace in ancient Egypt. The word came to be used metonymically for the Egyptian king under the New Kingdom (starting in the 18th dynasty, …
Pharr | Border City, Rio Grande Valley | Britannica
Pharr, city, Hidalgo county, southern Texas, U.S., in the lower Rio Grande valley. It is one of several small cities in the area (including McAllen, San Juan, and Edinburg) with mixed farm, oil, and gas …
Black | Description, Etymology, & Facts | Britannica
Black, in physics, what is perceived with the human eye when light is absent or when all wavelengths are absorbed. Unlike the colors of the spectrum, black lacks hue, so it is considered an achromatic …
Stock Market Crash, Unemployment, Poverty - Britannica
Dec 14, 2025 · Great Depression - Stock Market Crash, Unemployment, Poverty: A decline in spending and other factors influenced the downturn in various countries
Mixed economy | Definition, Characteristics, Examples, & Facts ...
mixed economy, in economics, a market system of resource allocation, commerce, and trade in which free...
Pharisee | Definition, History, & Legacy | Britannica
Pharisee, member of a Jewish religious party that flourished in Palestine during the latter part of the Second Temple period. The Pharisees’ insistence on the binding force of oral tradition still remains a …