Because salinity (in concert with temperature) affects the density of seawater, it can play a role in its vertical stratification. Essentially, lower salinity water (= lower density) floats on top of higher salinity water (= higher density).
Alternative definition, a choice limited to one of two or more possibilities, as of things, propositions, or courses of action, the selection of which precludes any other possibility: You have the alternative of riding or walking. See more.
1 Augmentative Communication: Beyond the Definition Augmentative and alternative communication, or AAC, is a term used to describe different methods of communication that are used to express your thoughts, ideas, and needs.hare to: 1  Augmentative Communication: Beyond the Definition Augmentative and alternative communication, or AAC, is a term used to describe different methods of communication that are used to express your thoughts, ideas, and needs. 2  What Is the Definition of After Hours Trading?