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S

sodium thiosulfate


sonogram

An image produced by ultrasound.


sound wave


specific rotation


In chemistry, specific rotation is a property of a chiral chemical compound. It is defined as the change in orientation of monochromatic plane-polarized light, per unit distance–concentration product, as the light passes through a sample of a compound in solution.


speed



Rate of motion or progress.


standard deviation

A parameter that indicates the way in which a probability function or a probability density function is centered around its mean and that is equal to the square root of the moment in which the deviation from the mean is squared

storing

to store: to place or leave in a location (such as a warehouse, library, or computer memory) for preservation or later use or disposal.


sugar

A sweet crystallizable material that consists wholly or essentially of sucrose, is colorless or white when pure tending to brown when less refined, is obtained commercially from sugarcane or sugar beet and less extensively from sorghum, maples, and palms, and is important as a source of dietary carbohydrate and as a sweetener and preservative of other foods