"Coulrophobia" Natural Recordings by Native Speakers
Coulrophobia is a Greek word that refers to an abnormal or irrational fear of clowns. It comes from the Latin words "columbarius," meaning "of dovecots," and the Greek suffix "-phobia," meaning "fear" or "aversion."
Coulombs are the unit of electric charge in the International System of Units (SI). It is named after French physicist Charles-Augustin de Coulomb, who first characterized the force of electrostatic attraction and repulsion between charged objects. One coulomb is defined as the quantity of electricity that flows through a circuit in one second when the current is one ampere. Symbol: C.
Coulometric refers to the use of coulometry, a technique in analytical chemistry that measures the amount of electric charge transferred during a chemical reaction to determine the amount of a substance present. It involves passing an electric current through a solution to oxidize or reduce the substance of interest, measuring the amount of charge required to achieve a specific reaction, and then using this data to calculate the amount of the substance present. Coulometric analysis is often used to determine the concentration of substances in solutions, such as in qualitative and quantitative analysis, and in environmental monitoring.
Coulsdon is a area in the London Borough of Croydon, England. The name "Coulsdon" is thought to derive from the Old English "Cudel's Dūn", which refers to a hill or mound belonging to someone called Cudel. Today, Coulsdon is a suburban area with a mix of residential and commercial properties, known for its pleasant surroundings and popular parks.
Coulure is a French term that refers to a defect in the growth of certain crops, particularly wheat, where the grains fail to develop due to a lack of sunlight or inadequate temperature conditions during a critical growth stage, resulting in uneven or misshapen grains.
Coumaric acid is a type of phenolic compound, which is a class of organic compounds characterized by having a hydroxyl group (-OH) attached to a benzene ring. In the case of coumaric acid, the hydroxyl group is attached to the 3-position of the benzene ring, making it a 3-hydroxy-2H-chromen-2-one.
Coumarin is a sweet-smelling, white to pale-yellow crystalline substance extracted from the tonka bean, a legume native to South America. It is often used in perfumes, fragrances, and flavorings, particularly in baked goods, desserts, and beverages.