plural of open-field test

A scientific test to gauge an animal's locomotor activity levels, anxiety, and willingness to explore, by placing the animal in an enclosed arena and observing its actions.

employment contract without a set date for termination

(idiomatic) to become receptive to new ideas and perspectives

(idiomatic) to speak

plural of open-book contract

A contract in which the buyer and seller of work or services agree on (i) which costs are remunerable and (ii) the margin that the supplier can add to these costs. The project is then invoiced to the customer based on the actual costs incurred plus the agreed margin.

(idiomatic) To perform an action that causes problems to appear which did not exist beforehand, or were not known about prior.

One is ready to receive and welcome another person.

A kitchen without walls separating it from the rest of house. Typically, this includes the dining room and living room, and is often collectively called the great room.