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.
No. 4: Low-Density Polyethylene (LDPE) No. 5: Polypropylene (PP) No. 6: Polystyrene (PS) No. 7: Other: when package is made with a resin other than the six listed above, or is made of more than one resin and used in a multi-layer combination.