Most people notice them in well-lit rooms or outdoors on a bright day. Often floaters are normal, but sometimes they're a sign of a more serious eye problem, such as retinal detachment, especially if you also see light flashes or a dark shadow come across the edge of your vision.
A Composite material (also called a composition material or shortened to composite, which is the common name) is a material made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components.
Noun. 1. chemical compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight. compound. chemical science, chemistry-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.oun. 1. chemical compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight. compound. chemical science, chemistry-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.