The act of pressing. The condition of being pressed. The application of continuous force by one body on another that it is touching; compression. Physics Force applied uniformly over a surface, measured as force per unit of area. Meteorology Atmospheric pressure. A compelling or constraining influence, such as a moral force, on the mind or will: pressure to conform; peer-group pressure. Urgent claim or demand: under the pressure of business; doesn't work well under pressure. An oppressive condition of physical, mental, social, or economic distress. A physical sensation produced by compression of a part of the body. Archaic A mark made by application of force or weight; an impression. To force, as by overpowering influence or persuasion. To pressurize. To pressure-cook.