"Opals" Natural Recordings by Native Speakers
Opals are a type of gemstone that is known for its iridescent, shimmering appearance. They are a hydrated silica mineral, formed from the fossilized remains of ancient sea creatures. Opals are prized for their unique ability to reflect different colors depending on the angle of the light hitting the stone, giving them a mesmerizing, otherworldly beauty.
The noun "opalescence" refers to a milky or iridescent glow or shimmer, often used to describe the appearance of certain natural substances, such as opals or pearls. It can also describe a poetic or dreamy quality of light or color.
Opalescent refers to something that has a soft, shimmering, or iridescent quality, often with a milky or misty appearance. It can describe the color or texture of something, such as a gemstone or a surface, that exhibits a subtle, changing play of light.
An opalotype is a type of early photographic printing process that uses a glass plate coated with a layer of collodion to produce a negative image. The plate is exposed in a camera, then developing solutions are applied to produce a positive print. Opalotypes, also known as wet plate collodion process, were widely used in the mid-19th century. They are characterized by their soft, dreamy quality and warm, brownish tones.
Opaque refers to something that is unable to be seen through or translucent. It is a term often used to describe substances or materials that do not allow light to pass through them, such as a thick fog, a dark mirror, or a solid object. In a broader sense, opaque can also be used to describe something that is difficult to understand or interpret, making it hard to see or perceive through obscurity or lack of clarity.
Opdivo is a brand name for the medication nivolumab, which is a type of immunotherapy used to treat various types of cancer, including lung, kidney, and melanoma. It is a programmed death receptor-1 (PD-1) inhibitor, which works by boosting the body's natural defense system to help fight cancer cells.