"Polyhydramnios" Natural Recordings by Native Speakers
Polyhydramnios is a medical condition in which there is an excessive amount of amniotic fluid surrounding a baby during pregnancy. This can be defined as a level of amniotic fluid index (AFI) above the 98th percentile, which is typically considered to be greater than 24 cm.
Describes a social system where one man has multiple wives, or a man who has multiple wives, often in the context of a culture or society that allows or condones polygamy.
A naturally occurring mineral composed of ammonium, calcium potassium sulfate potassium sulfate, with the chemical formula (NH4)2K2Ca(SO4)22H2O.
A polyhedron is a three-dimensional (3D) shape with flat faces, straight edges, and sharp corners or vertices. In other words, it is a solid object bounded by flat polygonal faces. Examples include a cube, pyramid, prism, and sphere.Note: The term "polyhedron" comes from the Greek words "poly" (many) and "hedron" (face).
Polyhedrons are three-dimensional solids that are formed by a combination of flat faces. A polyhedron is also known as a polyhedron. Typically, it has three-dimensional space enclosed by flat polygon sides.The faces of a polyhedron are polygons, which are flat shapes with 3 or more sides, while the edges are the line segments that connect the vertices (corners) of the polyhedron.Examples of polyhedrons include pyramids, cubes, prisms, and octahedrons, among many others.
Having many water molecules. Describing a compound consisting of many water molecules that can donate hydrogen atoms by making a hydrogen bond (H-bond) with other water molecules.
A type of polyurethane foam insulation.Definition: Polyisocyanurate (PIR) foam is a type of rigid foam insulation that is made from polymeric isocyanates and a foaming agent. It is a type of thermoset foam, meaning that it is created through a chemical reaction and cannot be melted or reshaped once it is formed.Properties: PIR foam is known for its:1. High R-value (thermal resistance): 6.5-8.0 per inch (26-32.7 per cm), which is higher than other types of foam insulation.2. Low moisture absorption: PIR foam has a low moisture absorption rate, making it a good choice for areas with high humidity.3. High fire resistance: PIR foam is non-combustible and meets the requirements for Class 1 fire rating.4. Durability: PIR foam is resistant to wear and tear, and can withstand exposure to weathering and UV radiation.Applications: PIR foam is commonly used in building construction as insulation in:1. Walls and floors2. Roofs and ceilings3. Attics and crawl spaces4. Pipework and ductworkIt is also used in refrigeration and cold storage applications, and in the manufacture of various products, such as building panels, door and window insulation, and packaging materials.