Legs, abs, and back muscles, as well as the obvious shoulder and arm muscles, all work together in a correctly performed press. Sixty years ago, the press was the primary weight room exercise for the upper body.
â¢ PROPRIETARY COLONY (noun) The noun PROPRIETARY COLONY has 1 sense: 1. a colony given to a proprietor to govern (in 17th century) Familiarity information: PROPRIETARY COLONY used as a noun is very rare. Dictionary entry details.
Of the proprietary colonies, only Maryland, Delaware, and Pennsylvania remained as such; they were not converted to royal colonies. In the others, the crown exerted its authority at the expense of the royal governors and the legislatures.roprietary colonies were the predominant form of colony in the seventeenth century, when the Carolinas, the Jerseys, Maine, Maryland, New Hampshire, New York, and Pennsylvania were handed down through hereditary proprietorship.