"Citruses" Natural Recordings by Native Speakers
Citruses refers to a group of juicy, sour-tasting fruits that grow on citrus trees, such as oranges, lemons, limes, grapefruits, and tangerines.
Citrophthora is a genus of fungi that causes sap stains and canker diseases in citrus fruits, particularly in oranges and lemons. The name "Citrophthora" is derived from the Greek words "citrus" meaning citrus and "phthora" meaning destruction.
Citrullinemia is a rare genetic disorder caused by a deficiency of the enzyme citrulline transaminase, which is necessary for the breakdown of the amino acid citrulline in the liver. It is a disorder of amino acid metabolism.
Citrullination is a post-translational modification of proteins in which an amino acid called citrulline is inserted into the protein in place of the amino acid arginine. This process is often referred to as a "deimination" reaction. Citrullination is a key step in the formation of citrullinated proteins, which have been implicated in various physiological and pathological processes, including autoimmune diseases such as rheumatoid arthritis and cancer.
A city-state is a political entity that is both a city and a sovereign state, typically with a very small population and a defined territory. City-states often have their own governments, laws, and institutions, but may also be part of a larger country or confederation.
A city is a large and permanent human settlement. It is typically characterized by a high population density and a defined boundary that separates it from surrounding areas. Cities are usually centers of commerce, industry, education, healthcare, and government, and they often have a wide range of infrastructure such as transportation systems, power and water supply lines, and communication networks.
A cityscape refers to a visual representation or depiction of an urban area's landscape, typically featuring buildings, streets, and other man-made structures. It can be a two-dimensional image, such as a painting, photograph, or architectural rendering, or a three-dimensional representation, like a diorama or scale model. Cityscapes often aim to capture the character and essence of a place, conveying the urban experience and the relationship between architecture, nature, and human activity.