(retronym, video games, Sony) common reference to PlayStation, to distinguish PlayStation 2 / (computing) Misspelling of PS/1. / (software, publishing, typography) PostScript level 1 / MoMA PS1

plural of isobutyrate

(of an animal) The oral cavity, bound by the cheeks of the face, the palate, and the flesh of the mandible, opening onto the mouth and the fauces, and containing the teeth, tongue, gums, and other ...

Normal profit refers to the revenue required for a firm to stay within a market in the long-run.