In Common Usage. emphases is one of the 10000 most commonly used words in the Collins dictionary.
structure. n. 1. a complex construction or entity. 2. the arrangement and interrelationship of parts in a construction, such as a building. 3. the manner of construction or organization: the structure of society.
Noun. 1. chemical science-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. chemistry. electronegativity, negativity - (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond.