Among the selection criteria for the new polyurethane were that the material exhibited a combination of good wear characteristics and mechanical properties, was easy to handle, and provided for fast, easy alteration and repair of polyurethane as well as metal patterns.
A linguistic universal is a pattern that occurs systematically across natural languages, potentially true for all of them. For example, All languages have nouns and verbs, or If a language is spoken, it has consonants and vowels.
(April 2010) Universal language may refer to a hypothetical or historical language spoken and understood by all or most of the world's population. In some contexts, it refers to a means of communication said to be understood by all living things, beings, and objects alike.