Open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead. Synonyms: ambiguous; equivocal. Context examples:
Polypropylene, also know as polypropene is a form of plastic just as polyethylene is. What separates polypropylene from polyethylene for starters is the fact that polypropylene can be molded in essence becoming pliable above a certain temperature. When it cools it will return to its solid state.
Polycarbonate vs Acrylic. Plastic is a polymer that has a large molecular mass. The monomers of plastic can be natural or synthetic. Plastic is synthesized from petrochemicals. There are two types of plastics, thermoplastics and thermosetting polymers. Thermoplastics becomes soft when heated and when cooled it solidifies again.